diff --git a/library/alloc/src/collections/binary_heap/mod.rs b/library/alloc/src/collections/binary_heap/mod.rs
index 59f10b09c73f..0bc65cdbc55a 100644
--- a/library/alloc/src/collections/binary_heap/mod.rs
+++ b/library/alloc/src/collections/binary_heap/mod.rs
@@ -452,7 +452,7 @@ impl<T: Ord> BinaryHeap<T> {
     ///
     /// The binary heap will be able to hold at least `capacity` elements without
     /// reallocating. This method is allowed to allocate for more elements than
-    /// `capacity`. If `capacity` is 0, the binary heap will not allocate.
+    /// `capacity`. If `capacity` is zero, the binary heap will not allocate.
     ///
     /// # Examples
     ///
@@ -496,7 +496,7 @@ impl<T: Ord, A: Allocator> BinaryHeap<T, A> {
     ///
     /// The binary heap will be able to hold at least `capacity` elements without
     /// reallocating. This method is allowed to allocate for more elements than
-    /// `capacity`. If `capacity` is 0, the binary heap will not allocate.
+    /// `capacity`. If `capacity` is zero, the binary heap will not allocate.
     ///
     /// # Examples
     ///
diff --git a/library/alloc/src/vec/mod.rs b/library/alloc/src/vec/mod.rs
index 990b7e8f7612..87e730b13f8b 100644
--- a/library/alloc/src/vec/mod.rs
+++ b/library/alloc/src/vec/mod.rs
@@ -427,7 +427,7 @@ impl<T> Vec<T> {
     ///
     /// The vector will be able to hold at least `capacity` elements without
     /// reallocating. This method is allowed to allocate for more elements than
-    /// `capacity`. If `capacity` is 0, the vector will not allocate.
+    /// `capacity`. If `capacity` is zero, the vector will not allocate.
     ///
     /// It is important to note that although the returned vector has the
     /// minimum *capacity* specified, the vector will have a zero *length*. For
@@ -487,7 +487,7 @@ impl<T> Vec<T> {
     ///
     /// The vector will be able to hold at least `capacity` elements without
     /// reallocating. This method is allowed to allocate for more elements than
-    /// `capacity`. If `capacity` is 0, the vector will not allocate.
+    /// `capacity`. If `capacity` is zero, the vector will not allocate.
     ///
     /// # Errors
     ///
@@ -745,7 +745,7 @@ impl<T, A: Allocator> Vec<T, A> {
     ///
     /// The vector will be able to hold at least `capacity` elements without
     /// reallocating. This method is allowed to allocate for more elements than
-    /// `capacity`. If `capacity` is 0, the vector will not allocate.
+    /// `capacity`. If `capacity` is zero, the vector will not allocate.
     ///
     /// It is important to note that although the returned vector has the
     /// minimum *capacity* specified, the vector will have a zero *length*. For
@@ -808,7 +808,7 @@ impl<T, A: Allocator> Vec<T, A> {
     ///
     /// The vector will be able to hold at least `capacity` elements without
     /// reallocating. This method is allowed to allocate for more elements than
-    /// `capacity`. If `capacity` is 0, the vector will not allocate.
+    /// `capacity`. If `capacity` is zero, the vector will not allocate.
     ///
     /// # Errors
     ///
diff --git a/library/core/src/iter/traits/iterator.rs b/library/core/src/iter/traits/iterator.rs
index ffaf1bc56e94..38dfbbef3932 100644
--- a/library/core/src/iter/traits/iterator.rs
+++ b/library/core/src/iter/traits/iterator.rs
@@ -1553,7 +1553,7 @@ pub trait Iterator {
     ///
     /// # Panics
     ///
-    /// Panics if `N` is 0. This check will most probably get changed to a
+    /// Panics if `N` is zero. This check will most probably get changed to a
     /// compile time error before this method gets stabilized.
     ///
     /// ```should_panic
@@ -3454,7 +3454,7 @@ pub trait Iterator {
     ///
     /// # Panics
     ///
-    /// Panics if `N` is 0.
+    /// Panics if `N` is zero.
     ///
     /// # Examples
     ///
diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs
index b3defba5a982..96426cd189cb 100644
--- a/library/core/src/slice/mod.rs
+++ b/library/core/src/slice/mod.rs
@@ -1039,7 +1039,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `size` is 0.
+    /// Panics if `size` is zero.
     ///
     /// # Examples
     ///
@@ -1095,7 +1095,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `chunk_size` is 0.
+    /// Panics if `chunk_size` is zero.
     ///
     /// # Examples
     ///
@@ -1130,7 +1130,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `chunk_size` is 0.
+    /// Panics if `chunk_size` is zero.
     ///
     /// # Examples
     ///
@@ -1172,7 +1172,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `chunk_size` is 0.
+    /// Panics if `chunk_size` is zero.
     ///
     /// # Examples
     ///
@@ -1211,7 +1211,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `chunk_size` is 0.
+    /// Panics if `chunk_size` is zero.
     ///
     /// # Examples
     ///
@@ -1288,7 +1288,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `N` is 0. This check will most probably get changed to a compile time
+    /// Panics if `N` is zero. This check will most probably get changed to a compile time
     /// error before this method gets stabilized.
     ///
     /// # Examples
@@ -1334,7 +1334,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `N` is 0. This check will most probably get changed to a compile time
+    /// Panics if `N` is zero. This check will most probably get changed to a compile time
     /// error before this method gets stabilized.
     ///
     /// # Examples
@@ -1372,7 +1372,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `N` is 0. This check will most probably get changed to a compile time
+    /// Panics if `N` is zero. This check will most probably get changed to a compile time
     /// error before this method gets stabilized.
     ///
     /// # Examples
@@ -1448,7 +1448,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `N` is 0. This check will most probably get changed to a compile time
+    /// Panics if `N` is zero. This check will most probably get changed to a compile time
     /// error before this method gets stabilized.
     ///
     /// # Examples
@@ -1489,7 +1489,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `N` is 0. This check will most probably get changed to a compile time
+    /// Panics if `N` is zero. This check will most probably get changed to a compile time
     /// error before this method gets stabilized.
     ///
     /// # Examples
@@ -1533,7 +1533,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `N` is 0. This check will most probably get changed to a compile time
+    /// Panics if `N` is zero. This check will most probably get changed to a compile time
     /// error before this method gets stabilized.
     ///
     /// # Examples
@@ -1568,7 +1568,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `N` is 0. This check will most probably get changed to a compile time
+    /// Panics if `N` is zero. This check will most probably get changed to a compile time
     /// error before this method gets stabilized.
     ///
     /// # Examples
@@ -1604,7 +1604,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `chunk_size` is 0.
+    /// Panics if `chunk_size` is zero.
     ///
     /// # Examples
     ///
@@ -1639,7 +1639,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `chunk_size` is 0.
+    /// Panics if `chunk_size` is zero.
     ///
     /// # Examples
     ///
@@ -1682,7 +1682,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `chunk_size` is 0.
+    /// Panics if `chunk_size` is zero.
     ///
     /// # Examples
     ///
@@ -1722,7 +1722,7 @@ impl<T> [T] {
     ///
     /// # Panics
     ///
-    /// Panics if `chunk_size` is 0.
+    /// Panics if `chunk_size` is zero.
     ///
     /// # Examples
     ///
diff --git a/library/std/src/collections/hash/map.rs b/library/std/src/collections/hash/map.rs
index 24bbc2f32cf6..09c0b61fb2b8 100644
--- a/library/std/src/collections/hash/map.rs
+++ b/library/std/src/collections/hash/map.rs
@@ -235,7 +235,7 @@ impl<K, V> HashMap<K, V, RandomState> {
     ///
     /// The hash map will be able to hold at least `capacity` elements without
     /// reallocating. This method is allowed to allocate for more elements than
-    /// `capacity`. If `capacity` is 0, the hash map will not allocate.
+    /// `capacity`. If `capacity` is zero, the hash map will not allocate.
     ///
     /// # Examples
     ///
@@ -287,7 +287,7 @@ impl<K, V, S> HashMap<K, V, S> {
     ///
     /// The hash map will be able to hold at least `capacity` elements without
     /// reallocating. This method is allowed to allocate for more elements than
-    /// `capacity`. If `capacity` is 0, the hash map will not allocate.
+    /// `capacity`. If `capacity` is zero, the hash map will not allocate.
     ///
     /// Warning: `hasher` is normally randomly generated, and
     /// is designed to allow HashMaps to be resistant to attacks that
diff --git a/library/std/src/collections/hash/set.rs b/library/std/src/collections/hash/set.rs
index f86bcdb4796e..21a73259f617 100644
--- a/library/std/src/collections/hash/set.rs
+++ b/library/std/src/collections/hash/set.rs
@@ -130,7 +130,7 @@ impl<T> HashSet<T, RandomState> {
     ///
     /// The hash set will be able to hold at least `capacity` elements without
     /// reallocating. This method is allowed to allocate for more elements than
-    /// `capacity`. If `capacity` is 0, the hash set will not allocate.
+    /// `capacity`. If `capacity` is zero, the hash set will not allocate.
     ///
     /// # Examples
     ///
@@ -379,7 +379,7 @@ impl<T, S> HashSet<T, S> {
     ///
     /// The hash set will be able to hold at least `capacity` elements without
     /// reallocating. This method is allowed to allocate for more elements than
-    /// `capacity`. If `capacity` is 0, the hash set will not allocate.
+    /// `capacity`. If `capacity` is zero, the hash set will not allocate.
     ///
     /// Warning: `hasher` is normally randomly generated, and
     /// is designed to allow `HashSet`s to be resistant to attacks that