diff --git a/shared-bindings/_bleio/Service.c b/shared-bindings/_bleio/Service.c
index da5633f2a3..c9b8288070 100644
--- a/shared-bindings/_bleio/Service.c
+++ b/shared-bindings/_bleio/Service.c
@@ -49,7 +49,7 @@
 //|
 //|   .. classmethod:: add_to_peripheral(peripheral, uuid, *, secondary=False)
 //|
-//|     Create a new Service object, identitied by the specified UUID, and add it
+//|     Create a new Service object, identified by the specified UUID, and add it
 //|     to the given Peripheral.
 //|
 //|     To mark the service as secondary, pass `True` as :py:data:`secondary`.
diff --git a/shared-bindings/_pixelbuf/__init__.c b/shared-bindings/_pixelbuf/__init__.c
index 48b9f1cef1..eb0cb29842 100644
--- a/shared-bindings/_pixelbuf/__init__.c
+++ b/shared-bindings/_pixelbuf/__init__.c
@@ -55,7 +55,7 @@
 
 //| .. class:: ByteOrder()
 //|
-//|   Classes representing byteorders for circuitpython
+//|   Classes representing byteorders for CircuitPython
 
 
 //|   .. attribute:: bpp
@@ -284,7 +284,7 @@ PIXELBUF_BYTEORDER(LBRG, 4, 3, 1, 2, 0, false, true)
 //|    * **bpp** 4
 //|    * **has_luminosity** True
 //|
-//|    Actual format commonly used by DotStar (5 bit luninance value)
+//|    Actual format commonly used by DotStar (5 bit luminance value)
 PIXELBUF_BYTEORDER(LBGR, 4, 3, 2, 1, 0, false, true)
 
 STATIC const mp_rom_map_elem_t pixelbuf_module_globals_table[] = {
diff --git a/shared-bindings/audiobusio/I2SOut.c b/shared-bindings/audiobusio/I2SOut.c
index 2cd2b67289..81383c7776 100644
--- a/shared-bindings/audiobusio/I2SOut.c
+++ b/shared-bindings/audiobusio/I2SOut.c
@@ -62,7 +62,7 @@
 //|     import time
 //|     import math
 //|
-//|     # Generate one period of sine wav.
+//|     # Generate one period of sine wave.
 //|     length = 8000 // 440
 //|     sine_wave = array.array("H", [0] * length)
 //|     for i in range(length):
diff --git a/shared-bindings/audioio/__init__.c b/shared-bindings/audioio/__init__.c
index 7fa37d5c51..02a5fe1eee 100644
--- a/shared-bindings/audioio/__init__.c
+++ b/shared-bindings/audioio/__init__.c
@@ -68,7 +68,7 @@
 //|
 //| For compatibility with CircuitPython 4.x, some builds allow the items in
 //| `audiocore` to be imported from `audioio`.  This will be removed for all
-//| boards in a future build of CicuitPython.
+//| boards in a future build of CircuitPython.
 //|
 
 STATIC const mp_rom_map_elem_t audioio_module_globals_table[] = {