diff --git a/libcody/README.md b/libcody/README.md
index a95085eac7aaa11dd3dd55362bcc9c4140cb2242..4530db95d28917c9204abc6ea317cb4d2e4cded2 100644
--- a/libcody/README.md
+++ b/libcody/README.md
@@ -181,7 +181,7 @@ omitted the value 0 is implied.  The following flags are available:
 * `1<<0`, `NameOnly`: The request is for the name only, and not the
   CMI contents.
 
-The `NameOnly` flag may be provded in a handshake response, and
+The `NameOnly` flag may be provided in a handshake response, and
 indicates that the server is interested in requests only for their
 implied dependency information.  It may be provided on a request to
 indicate that only the CMI name is required, not its contents (for
diff --git a/libcody/cody.hh b/libcody/cody.hh
index 789ce9e70b752e2eb10d1b4419e0d4140f6beb6a..5aa93171c148279e8dbe09733a4bb30cba2624a2 100644
--- a/libcody/cody.hh
+++ b/libcody/cody.hh
@@ -382,7 +382,7 @@ private:
     Server *server;  ///< Directly connected server
   };
   bool is_direct = false;  ///< Discriminator
-  bool is_connected = false;  /// Connection handshake succesful
+  bool is_connected = false;  /// Connection handshake successful
 
 private:
   Client ();
@@ -449,7 +449,7 @@ public:
 public:
   ///
   /// Perform connection handshake.  All othe requests will result in
-  /// errors, until handshake is succesful.
+  /// errors, until handshake is successful.
   /// @param agent compiler identification
   /// @param ident compilation identifiation (maybe nullptr)
   /// @param alen length of agent string, if known
diff --git a/libsanitizer/tsan/tsan_rtl.h b/libsanitizer/tsan/tsan_rtl.h
index eab83704240d8174d798ba4d48f67fd8dffd62dc..03732e9c02d947ec0d58cf59d98e5af6dc35d9c3 100644
--- a/libsanitizer/tsan/tsan_rtl.h
+++ b/libsanitizer/tsan/tsan_rtl.h
@@ -149,7 +149,7 @@ struct ThreadState {
   // but it is placed here in order to share cache line with previous fields.
   ThreadState* current;
   // This is a slow path flag. On fast path, fast_state.GetIgnoreBit() is read.
-  // We do not distinguish beteween ignoring reads and writes
+  // We do not distinguish between ignoring reads and writes
   // for better performance.
   int ignore_reads_and_writes;
   atomic_sint32_t pending_signals;
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 33d49571d0e2b21234603a6a2765e695e3e012de..404dc9414589bbe0054d01278a3cdbdbc79177f1 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -100,7 +100,7 @@ startswith (const char *str, const char *prefix)
 /* The part of the symbol table the plugin has to keep track of. Note that we
    must keep SYMS until all_symbols_read is called to give the linker time to
    copy the symbol information. 
-   The id must be 64bit to minimze collisions. */
+   The id must be 64bit to minimize collisions. */
 
 struct sym_aux
 {