Fix typos

6 files changed, 9 insertions, 9 deletions

diff --git a/include/ruby/internal/encoding/string.h b/include/ruby/internal/encoding/string.h
index f8ce809199..6ed7ca1c90 100644
--- a/include/ruby/internal/encoding/string.h
+++ b/include/ruby/internal/encoding/string.h
@@ -190,7 +190,7 @@ VALUE rb_enc_str_buf_cat(VALUE str, const char *ptr, long len, rb_encoding *enc)
  * In  other languages,  APIs like  this  one could  be seen  as the  primitive
  * routines where encodings' "encode" feature are implemented.  However in case
  * of  Ruby this  is not  the primitive  one.  We  directly manipulate  encoded
- * strings.  Encoding conversion routines  transocde an encoded string directly
+ * strings.  Encoding conversion routines  transcode an encoded string directly
  * to another one; not via a code point array.
  */
 VALUE rb_enc_uint_chr(unsigned int code, rb_encoding *enc);
diff --git a/include/ruby/internal/fl_type.h b/include/ruby/internal/fl_type.h
index 47f054256b..08405d6f30 100644
--- a/include/ruby/internal/fl_type.h
+++ b/include/ruby/internal/fl_type.h
@@ -183,7 +183,7 @@ RB_GNUC_EXTENSION
  * @note  About the `FL_USER` terminology: the "user" here does not necessarily
  *        mean only  you.  For  instance struct  ::RString instances  use these
  *        bits to cache their encodings  etc.  Devs discussed about this topic,
- *        reached their  concensus that  ::RUBY_T_DATA is  the only  valid data
+ *        reached their  consensus that  ::RUBY_T_DATA is  the only  valid data
  *        structure that  can use these  bits; other data  structures including
  *        ::RUBY_T_OBJECT  use these  bits  for their  own  purpose.  See  also
  *        https://bugs.ruby-lang.org/issues/18059
diff --git a/include/ruby/internal/intern/gc.h b/include/ruby/internal/intern/gc.h
index 1617a7cef6..d8e476b078 100644
--- a/include/ruby/internal/intern/gc.h
+++ b/include/ruby/internal/intern/gc.h
@@ -249,7 +249,7 @@ void rb_gc(void);
  *
  * @internal
  *
- * But isn't it  easier for you to call super,  and let `Object#intialize_copy`
+ * But isn't it  easier for you to call super,  and let `Object#initialize_copy`
  * call this function instead?
  */
 void rb_gc_copy_finalizer(VALUE dst, VALUE src);
diff --git a/include/ruby/internal/intern/thread.h b/include/ruby/internal/intern/thread.h
index 294e552fe9..716375acd7 100644
--- a/include/ruby/internal/intern/thread.h
+++ b/include/ruby/internal/intern/thread.h
@@ -46,7 +46,7 @@ void rb_thread_schedule(void);
  *
  * @param[in]  fd                    A file descriptor.
  * @exception  rb_eIOError           Closed stream.
- * @exception  rb_eSystemCalleError  Situations like EBADF.
+ * @exception  rb_eSystemCallError   Situations like EBADF.
  */
 int rb_thread_wait_fd(int fd);
 
@@ -56,7 +56,7 @@ int rb_thread_wait_fd(int fd);
  *
  * @param[in]  fd                    A file descriptor.
  * @exception  rb_eIOError           Closed stream.
- * @exception  rb_eSystemCalleError  Situations like EBADF.
+ * @exception  rb_eSystemCallError   Situations like EBADF.
  */
 int rb_thread_fd_writable(int fd);
 
diff --git a/include/ruby/io.h b/include/ruby/io.h
index c117087d6a..aac7846537 100644
--- a/include/ruby/io.h
+++ b/include/ruby/io.h
@@ -470,7 +470,7 @@ int rb_io_modestr_fmode(const char *modestr);
 
 /**
  * Identical  to rb_io_modestr_fmode(),  except it  returns a  mixture of  `O_`
- * flags.  This for instnce returns `O_WRONLY | O_TRUNC | O_CREAT | O_EXCL` for
+ * flags.  This for instance returns `O_WRONLY | O_TRUNC | O_CREAT | O_EXCL` for
  * `"wx"`.
  *
  * @param[in]  modestr       File mode, in C's string.
@@ -735,8 +735,8 @@ int rb_io_extract_encoding_option(VALUE opt, rb_encoding **enc_p, rb_encoding **
  * class File
  *   def initialize: (
  *     (String | int)      path,
- *     ?(Strig | int)      fmode,
- *     ?(Strig | int)      perm,
+ *     ?(String | int)      fmode,
+ *     ?(String | int)      perm,
  *     ?mode:              (String | int),
  *     ?flags:             int,
  *     ?external_encoding: (Encoding | String),
diff --git a/include/ruby/ractor.h b/include/ruby/ractor.h
index 687ddcadec..7811616f6d 100644
--- a/include/ruby/ractor.h
+++ b/include/ruby/ractor.h
@@ -145,7 +145,7 @@ bool rb_ractor_local_storage_value_lookup(rb_ractor_local_key_t key, VALUE *val)
  * Associates the passed value to the passed key.
  *
  * @param[in]  key  A ractor-local storage key.
- * @param[in]  val  Arbitary ruby object.
+ * @param[in]  val  Arbitrary ruby object.
  * @post       `val` corresponds to `key` in the current Ractor.
  */
 void  rb_ractor_local_storage_value_set(rb_ractor_local_key_t key, VALUE val);