diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics.rs b/compiler/rustc_const_eval/src/interpret/intrinsics.rs
index 18dde3bc34e..d6f856a6f0a 100644
--- a/compiler/rustc_const_eval/src/interpret/intrinsics.rs
+++ b/compiler/rustc_const_eval/src/interpret/intrinsics.rs
@@ -140,7 +140,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
 
             sym::min_align_of_val | sym::size_of_val => {
                 // Avoid `deref_operand` -- this is not a deref, the ptr does not have to be
-                // dereferencable!
+                // dereferenceable!
                 let place = self.ref_to_mplace(&self.read_immediate(&args[0])?)?;
                 let (size, align) = self
                     .size_and_align_of_mplace(&place)?
diff --git a/compiler/rustc_const_eval/src/interpret/place.rs b/compiler/rustc_const_eval/src/interpret/place.rs
index 4c95da896a2..e526bfa2b52 100644
--- a/compiler/rustc_const_eval/src/interpret/place.rs
+++ b/compiler/rustc_const_eval/src/interpret/place.rs
@@ -327,7 +327,7 @@ where
         self.memory.get_mut(place.ptr, size, place.align)
     }
 
-    /// Check if this mplace is dereferencable and sufficiently aligned.
+    /// Check if this mplace is dereferenceable and sufficiently aligned.
     fn check_mplace_access(
         &self,
         mplace: MPlaceTy<'tcx, M::PointerTag>,
diff --git a/library/alloc/src/collections/vec_deque/iter_mut.rs b/library/alloc/src/collections/vec_deque/iter_mut.rs
index 31e6e3b06af..ee2df0d5160 100644
--- a/library/alloc/src/collections/vec_deque/iter_mut.rs
+++ b/library/alloc/src/collections/vec_deque/iter_mut.rs
@@ -12,7 +12,7 @@ use super::{count, wrap_index, RingSlices};
 /// [`iter_mut`]: super::VecDeque::iter_mut
 #[stable(feature = "rust1", since = "1.0.0")]
 pub struct IterMut<'a, T: 'a> {
-    // Internal safety invariant: the entire slice is dereferencable.
+    // Internal safety invariant: the entire slice is dereferenceable.
     ring: *mut [T],
     tail: usize,
     head: usize,
@@ -42,7 +42,7 @@ impl<T: fmt::Debug> fmt::Debug for IterMut<'_, T> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         let (front, back) = RingSlices::ring_slices(self.ring, self.head, self.tail);
         // SAFETY: these are the elements we have not handed out yet, so aliasing is fine.
-        // The `IterMut` invariant also ensures everything is dereferencable.
+        // The `IterMut` invariant also ensures everything is dereferenceable.
         let (front, back) = unsafe { (&*front, &*back) };
         f.debug_tuple("IterMut").field(&front).field(&back).finish()
     }
@@ -78,7 +78,7 @@ impl<'a, T> Iterator for IterMut<'a, T> {
     {
         let (front, back) = RingSlices::ring_slices(self.ring, self.head, self.tail);
         // SAFETY: these are the elements we have not handed out yet, so aliasing is fine.
-        // The `IterMut` invariant also ensures everything is dereferencable.
+        // The `IterMut` invariant also ensures everything is dereferenceable.
         let (front, back) = unsafe { (&mut *front, &mut *back) };
         accum = front.iter_mut().fold(accum, &mut f);
         back.iter_mut().fold(accum, &mut f)
@@ -132,7 +132,7 @@ impl<'a, T> DoubleEndedIterator for IterMut<'a, T> {
     {
         let (front, back) = RingSlices::ring_slices(self.ring, self.head, self.tail);
         // SAFETY: these are the elements we have not handed out yet, so aliasing is fine.
-        // The `IterMut` invariant also ensures everything is dereferencable.
+        // The `IterMut` invariant also ensures everything is dereferenceable.
         let (front, back) = unsafe { (&mut *front, &mut *back) };
         accum = back.iter_mut().rfold(accum, &mut f);
         front.iter_mut().rfold(accum, &mut f)
diff --git a/library/alloc/src/collections/vec_deque/mod.rs b/library/alloc/src/collections/vec_deque/mod.rs
index 702d97858eb..075becfb7d1 100644
--- a/library/alloc/src/collections/vec_deque/mod.rs
+++ b/library/alloc/src/collections/vec_deque/mod.rs
@@ -1020,7 +1020,7 @@ impl<T, A: Allocator> VecDeque<T, A> {
     #[stable(feature = "rust1", since = "1.0.0")]
     pub fn iter_mut(&mut self) -> IterMut<'_, T> {
         // SAFETY: The internal `IterMut` safety invariant is established because the
-        // `ring` we create is a dereferencable slice for lifetime '_.
+        // `ring` we create is a dereferenceable slice for lifetime '_.
         let ring = ptr::slice_from_raw_parts_mut(self.ptr(), self.cap());
 
         unsafe { IterMut::new(ring, self.tail, self.head, PhantomData) }
@@ -1209,7 +1209,7 @@ impl<T, A: Allocator> VecDeque<T, A> {
         let (tail, head) = self.range_tail_head(range);
 
         // SAFETY: The internal `IterMut` safety invariant is established because the
-        // `ring` we create is a dereferencable slice for lifetime '_.
+        // `ring` we create is a dereferenceable slice for lifetime '_.
         let ring = ptr::slice_from_raw_parts_mut(self.ptr(), self.cap());
 
         unsafe { IterMut::new(ring, tail, head, PhantomData) }
diff --git a/library/alloc/src/rc.rs b/library/alloc/src/rc.rs
index c4e5e44fec0..33bee4324fd 100644
--- a/library/alloc/src/rc.rs
+++ b/library/alloc/src/rc.rs
@@ -2121,7 +2121,7 @@ impl<T: ?Sized> Weak<T> {
             // a valid payload address, as the payload is at least as aligned as RcBox (usize).
             ptr as *const T
         } else {
-            // SAFETY: if is_dangling returns false, then the pointer is dereferencable.
+            // SAFETY: if is_dangling returns false, then the pointer is dereferenceable.
             // The payload may be dropped at this point, and we have to maintain provenance,
             // so use raw pointer manipulation.
             unsafe { ptr::addr_of_mut!((*ptr).value) }
diff --git a/library/alloc/src/sync.rs b/library/alloc/src/sync.rs
index 733a898b285..7c065f37d1f 100644
--- a/library/alloc/src/sync.rs
+++ b/library/alloc/src/sync.rs
@@ -1743,7 +1743,7 @@ impl<T: ?Sized> Weak<T> {
             // a valid payload address, as the payload is at least as aligned as ArcInner (usize).
             ptr as *const T
         } else {
-            // SAFETY: if is_dangling returns false, then the pointer is dereferencable.
+            // SAFETY: if is_dangling returns false, then the pointer is dereferenceable.
             // The payload may be dropped at this point, and we have to maintain provenance,
             // so use raw pointer manipulation.
             unsafe { ptr::addr_of_mut!((*ptr).data) }
diff --git a/library/core/src/ptr/const_ptr.rs b/library/core/src/ptr/const_ptr.rs
index 3c716672113..332be06dd16 100644
--- a/library/core/src/ptr/const_ptr.rs
+++ b/library/core/src/ptr/const_ptr.rs
@@ -119,7 +119,7 @@ impl<T: ?Sized> *const T {
     ///
     /// * The pointer must be properly aligned.
     ///
-    /// * It must be "dereferencable" in the sense defined in [the module documentation].
+    /// * It must be "dereferenceable" in the sense defined in [the module documentation].
     ///
     /// * The pointer must point to an initialized instance of `T`.
     ///
@@ -183,7 +183,7 @@ impl<T: ?Sized> *const T {
     ///
     /// * The pointer must be properly aligned.
     ///
-    /// * It must be "dereferencable" in the sense defined in [the module documentation].
+    /// * It must be "dereferenceable" in the sense defined in [the module documentation].
     ///
     /// * You must enforce Rust's aliasing rules, since the returned lifetime `'a` is
     ///   arbitrarily chosen and does not necessarily reflect the actual lifetime of the data.
@@ -1003,7 +1003,7 @@ impl<T> *const [T] {
     /// Returns a raw pointer to an element or subslice, without doing bounds
     /// checking.
     ///
-    /// Calling this method with an out-of-bounds index or when `self` is not dereferencable
+    /// Calling this method with an out-of-bounds index or when `self` is not dereferenceable
     /// is *[undefined behavior]* even if the resulting pointer is not used.
     ///
     /// [undefined behavior]: https://doc.rust-lang.org/reference/behavior-considered-undefined.html
@@ -1025,7 +1025,7 @@ impl<T> *const [T] {
     where
         I: SliceIndex<[T]>,
     {
-        // SAFETY: the caller ensures that `self` is dereferencable and `index` in-bounds.
+        // SAFETY: the caller ensures that `self` is dereferenceable and `index` in-bounds.
         unsafe { index.get_unchecked(self) }
     }
 
diff --git a/library/core/src/ptr/mut_ptr.rs b/library/core/src/ptr/mut_ptr.rs
index 5d4e37641ee..15ef64bc73f 100644
--- a/library/core/src/ptr/mut_ptr.rs
+++ b/library/core/src/ptr/mut_ptr.rs
@@ -122,7 +122,7 @@ impl<T: ?Sized> *mut T {
     ///
     /// * The pointer must be properly aligned.
     ///
-    /// * It must be "dereferencable" in the sense defined in [the module documentation].
+    /// * It must be "dereferenceable" in the sense defined in [the module documentation].
     ///
     /// * The pointer must point to an initialized instance of `T`.
     ///
@@ -189,7 +189,7 @@ impl<T: ?Sized> *mut T {
     ///
     /// * The pointer must be properly aligned.
     ///
-    /// * It must be "dereferencable" in the sense defined in [the module documentation].
+    /// * It must be "dereferenceable" in the sense defined in [the module documentation].
     ///
     /// * You must enforce Rust's aliasing rules, since the returned lifetime `'a` is
     ///   arbitrarily chosen and does not necessarily reflect the actual lifetime of the data.
@@ -368,7 +368,7 @@ impl<T: ?Sized> *mut T {
     ///
     /// * The pointer must be properly aligned.
     ///
-    /// * It must be "dereferencable" in the sense defined in [the module documentation].
+    /// * It must be "dereferenceable" in the sense defined in [the module documentation].
     ///
     /// * The pointer must point to an initialized instance of `T`.
     ///
@@ -434,7 +434,7 @@ impl<T: ?Sized> *mut T {
     ///
     /// * The pointer must be properly aligned.
     ///
-    /// * It must be "dereferencable" in the sense defined in [the module documentation].
+    /// * It must be "dereferenceable" in the sense defined in [the module documentation].
     ///
     /// * You must enforce Rust's aliasing rules, since the returned lifetime `'a` is
     ///   arbitrarily chosen and does not necessarily reflect the actual lifetime of the data.
@@ -1266,7 +1266,7 @@ impl<T> *mut [T] {
     /// Returns a raw pointer to an element or subslice, without doing bounds
     /// checking.
     ///
-    /// Calling this method with an out-of-bounds index or when `self` is not dereferencable
+    /// Calling this method with an out-of-bounds index or when `self` is not dereferenceable
     /// is *[undefined behavior]* even if the resulting pointer is not used.
     ///
     /// [undefined behavior]: https://doc.rust-lang.org/reference/behavior-considered-undefined.html
@@ -1288,7 +1288,7 @@ impl<T> *mut [T] {
     where
         I: SliceIndex<[T]>,
     {
-        // SAFETY: the caller ensures that `self` is dereferencable and `index` in-bounds.
+        // SAFETY: the caller ensures that `self` is dereferenceable and `index` in-bounds.
         unsafe { index.get_unchecked_mut(self) }
     }
 
diff --git a/library/core/src/ptr/non_null.rs b/library/core/src/ptr/non_null.rs
index 58110b06809..4f4e7eca281 100644
--- a/library/core/src/ptr/non_null.rs
+++ b/library/core/src/ptr/non_null.rs
@@ -109,7 +109,7 @@ impl<T: Sized> NonNull<T> {
     ///
     /// * The pointer must be properly aligned.
     ///
-    /// * It must be "dereferencable" in the sense defined in [the module documentation].
+    /// * It must be "dereferenceable" in the sense defined in [the module documentation].
     ///
     /// * You must enforce Rust's aliasing rules, since the returned lifetime `'a` is
     ///   arbitrarily chosen and does not necessarily reflect the actual lifetime of the data.
@@ -142,7 +142,7 @@ impl<T: Sized> NonNull<T> {
     ///
     /// * The pointer must be properly aligned.
     ///
-    /// * It must be "dereferencable" in the sense defined in [the module documentation].
+    /// * It must be "dereferenceable" in the sense defined in [the module documentation].
     ///
     /// * You must enforce Rust's aliasing rules, since the returned lifetime `'a` is
     ///   arbitrarily chosen and does not necessarily reflect the actual lifetime of the data.
@@ -289,7 +289,7 @@ impl<T: ?Sized> NonNull<T> {
     ///
     /// * The pointer must be properly aligned.
     ///
-    /// * It must be "dereferencable" in the sense defined in [the module documentation].
+    /// * It must be "dereferenceable" in the sense defined in [the module documentation].
     ///
     /// * The pointer must point to an initialized instance of `T`.
     ///
@@ -338,7 +338,7 @@ impl<T: ?Sized> NonNull<T> {
     ///
     /// * The pointer must be properly aligned.
     ///
-    /// * It must be "dereferencable" in the sense defined in [the module documentation].
+    /// * It must be "dereferenceable" in the sense defined in [the module documentation].
     ///
     /// * The pointer must point to an initialized instance of `T`.
     ///
@@ -604,7 +604,7 @@ impl<T> NonNull<[T]> {
     /// Returns a raw pointer to an element or subslice, without doing bounds
     /// checking.
     ///
-    /// Calling this method with an out-of-bounds index or when `self` is not dereferencable
+    /// Calling this method with an out-of-bounds index or when `self` is not dereferenceable
     /// is *[undefined behavior]* even if the resulting pointer is not used.
     ///
     /// [undefined behavior]: https://doc.rust-lang.org/reference/behavior-considered-undefined.html
@@ -628,7 +628,7 @@ impl<T> NonNull<[T]> {
     where
         I: SliceIndex<[T]>,
     {
-        // SAFETY: the caller ensures that `self` is dereferencable and `index` in-bounds.
+        // SAFETY: the caller ensures that `self` is dereferenceable and `index` in-bounds.
         // As a consequence, the resulting pointer cannot be null.
         unsafe { NonNull::new_unchecked(self.as_ptr().get_unchecked_mut(index)) }
     }
diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs
index f9ea99ea8aa..7d5d70f1720 100644
--- a/library/core/src/slice/mod.rs
+++ b/library/core/src/slice/mod.rs
@@ -380,7 +380,7 @@ impl<T> [T] {
         I: SliceIndex<Self>,
     {
         // SAFETY: the caller must uphold most of the safety requirements for `get_unchecked`;
-        // the slice is dereferencable because `self` is a safe reference.
+        // the slice is dereferenceable because `self` is a safe reference.
         // The returned pointer is safe because impls of `SliceIndex` have to guarantee that it is.
         unsafe { &*index.get_unchecked(self) }
     }
@@ -416,7 +416,7 @@ impl<T> [T] {
         I: SliceIndex<Self>,
     {
         // SAFETY: the caller must uphold the safety requirements for `get_unchecked_mut`;
-        // the slice is dereferencable because `self` is a safe reference.
+        // the slice is dereferenceable because `self` is a safe reference.
         // The returned pointer is safe because impls of `SliceIndex` have to guarantee that it is.
         unsafe { &mut *index.get_unchecked_mut(self) }
     }
diff --git a/library/core/src/str/mod.rs b/library/core/src/str/mod.rs
index cd5ed35be79..1d4600fa4a2 100644
--- a/library/core/src/str/mod.rs
+++ b/library/core/src/str/mod.rs
@@ -416,7 +416,7 @@ impl str {
     #[inline]
     pub unsafe fn get_unchecked<I: SliceIndex<str>>(&self, i: I) -> &I::Output {
         // SAFETY: the caller must uphold the safety contract for `get_unchecked`;
-        // the slice is dereferencable because `self` is a safe reference.
+        // the slice is dereferenceable because `self` is a safe reference.
         // The returned pointer is safe because impls of `SliceIndex` have to guarantee that it is.
         unsafe { &*i.get_unchecked(self) }
     }
@@ -451,7 +451,7 @@ impl str {
     #[inline]
     pub unsafe fn get_unchecked_mut<I: SliceIndex<str>>(&mut self, i: I) -> &mut I::Output {
         // SAFETY: the caller must uphold the safety contract for `get_unchecked_mut`;
-        // the slice is dereferencable because `self` is a safe reference.
+        // the slice is dereferenceable because `self` is a safe reference.
         // The returned pointer is safe because impls of `SliceIndex` have to guarantee that it is.
         unsafe { &mut *i.get_unchecked_mut(self) }
     }
@@ -504,7 +504,7 @@ impl str {
     #[inline]
     pub unsafe fn slice_unchecked(&self, begin: usize, end: usize) -> &str {
         // SAFETY: the caller must uphold the safety contract for `get_unchecked`;
-        // the slice is dereferencable because `self` is a safe reference.
+        // the slice is dereferenceable because `self` is a safe reference.
         // The returned pointer is safe because impls of `SliceIndex` have to guarantee that it is.
         unsafe { &*(begin..end).get_unchecked(self) }
     }
@@ -537,7 +537,7 @@ impl str {
     #[inline]
     pub unsafe fn slice_mut_unchecked(&mut self, begin: usize, end: usize) -> &mut str {
         // SAFETY: the caller must uphold the safety contract for `get_unchecked_mut`;
-        // the slice is dereferencable because `self` is a safe reference.
+        // the slice is dereferenceable because `self` is a safe reference.
         // The returned pointer is safe because impls of `SliceIndex` have to guarantee that it is.
         unsafe { &mut *(begin..end).get_unchecked_mut(self) }
     }