diff --git a/src/byte_str.rs b/src/byte_str.rs
index 181ced9e..90872ecb 100644
--- a/src/byte_str.rs
+++ b/src/byte_str.rs
@@ -31,7 +31,7 @@ impl ByteStr {
     ///
     /// ## Safety
     /// `bytes` must contain valid UTF-8. In a release build it is undefined
-    /// behaviour to call this with `bytes` that is not valid UTF-8.
+    /// behavior to call this with `bytes` that is not valid UTF-8.
     pub unsafe fn from_utf8_unchecked(bytes: Bytes) -> ByteStr {
         if cfg!(debug_assertions) {
             match str::from_utf8(&bytes) {
diff --git a/src/extensions.rs b/src/extensions.rs
index 3764a558..c41bbfc3 100644
--- a/src/extensions.rs
+++ b/src/extensions.rs
@@ -215,7 +215,7 @@ impl Extensions {
         self.map.as_ref().map_or(true, |map| map.is_empty())
     }
 
-    /// Get the numer of extensions available.
+    /// Get the number of extensions available.
     ///
     /// # Example
     ///
diff --git a/src/header/name.rs b/src/header/name.rs
index 09af1da1..3d563f4e 100644
--- a/src/header/name.rs
+++ b/src/header/name.rs
@@ -1659,13 +1659,13 @@ const SCRATCH_BUF_OVERFLOW: usize = SCRATCH_BUF_SIZE + 1;
 fn uninit_u8_array() -> [MaybeUninit<u8>; SCRATCH_BUF_SIZE] {
     let arr = MaybeUninit::<[MaybeUninit<u8>; SCRATCH_BUF_SIZE]>::uninit();
     // Safety: assume_init() is claiming that an array of MaybeUninit<>
-    // has been initilized, but MaybeUninit<>'s do not require initilizaton.
+    // has been initialized, but MaybeUninit<>'s do not require initialization.
     unsafe { arr.assume_init() }
 }
 
-// Assuming all the elements are initilized, get a slice of them.
+// Assuming all the elements are initialized, get a slice of them.
 //
-// Safety: All elements of `slice` must be initilized to prevent
+// Safety: All elements of `slice` must be initialized to prevent
 // undefined behavior.
 unsafe fn slice_assume_init<T>(slice: &[MaybeUninit<T>]) -> &[T] {
     &*(slice as *const [MaybeUninit<T>] as *const [T])
diff --git a/src/uri/authority.rs b/src/uri/authority.rs
index dab6dcd0..07aa6795 100644
--- a/src/uri/authority.rs
+++ b/src/uri/authority.rs
@@ -24,7 +24,7 @@ impl Authority {
     // Not public while `bytes` is unstable.
     pub(super) fn from_shared(s: Bytes) -> Result<Self, InvalidUri> {
         // Precondition on create_authority: trivially satisfied by the
-        // identity clousre
+        // identity closure
         create_authority(s, |s| s)
     }
 
diff --git a/src/uri/scheme.rs b/src/uri/scheme.rs
index c33ec41a..dbcc8c3f 100644
--- a/src/uri/scheme.rs
+++ b/src/uri/scheme.rs
@@ -302,7 +302,7 @@ impl Scheme2<usize> {
                         // Return scheme
                         return Ok(Scheme2::Other(i));
                     }
-                    // Invald scheme character, abort
+                    // Invalid scheme character, abort
                     0 => break,
                     _ => {}
                 }
@@ -349,10 +349,10 @@ mod test {
 
     #[test]
     fn invalid_scheme_is_error() {
-        Scheme::try_from("my_funky_scheme").expect_err("Unexpectly valid Scheme");
+        Scheme::try_from("my_funky_scheme").expect_err("Unexpectedly valid Scheme");
 
         // Invalid UTF-8
-        Scheme::try_from([0xC0].as_ref()).expect_err("Unexpectly valid Scheme");
+        Scheme::try_from([0xC0].as_ref()).expect_err("Unexpectedly valid Scheme");
     }
 
     fn scheme(s: &str) -> Scheme {