diff --git a/include/arch/arc/arch.h b/include/arch/arc/arch.h
index f9b492e6776..b51f6d7346e 100644
--- a/include/arch/arc/arch.h
+++ b/include/arch/arc/arch.h
@@ -20,7 +20,7 @@
 extern "C" {
 #endif
 
-/* APIs need to support non-byte addressible architectures */
+/* APIs need to support non-byte addressable architectures */
 
 #define OCTET_TO_SIZEOFUNIT(X) (X)
 #define SIZEOFUNIT_TO_OCTET(X) (X)
diff --git a/include/arch/arm/cortex_m/cmsis.h b/include/arch/arm/cortex_m/cmsis.h
index 0ae08197afb..f18616db86a 100644
--- a/include/arch/arm/cortex_m/cmsis.h
+++ b/include/arch/arm/cortex_m/cmsis.h
@@ -116,7 +116,7 @@ typedef enum {
 #elif defined(CONFIG_CPU_CORTEX_M7)
 #define __CM7_REV        0
 #else
-#error "Uknown Cortex-M device"
+#error "Unknown Cortex-M device"
 #endif
 
 #define __MPU_PRESENT                  0 /* Zephyr has no MPU support */
@@ -135,7 +135,7 @@ typedef enum {
 #elif defined(CONFIG_CPU_CORTEX_M7)
 #include <core_cm7.h>
 #else
-#error "Uknown Cortex-M device"
+#error "Unknown Cortex-M device"
 #endif
 
 #ifdef __cplusplus
diff --git a/include/arch/nios2/arch.h b/include/arch/nios2/arch.h
index c2e3288e186..7a1e55e7d1f 100644
--- a/include/arch/nios2/arch.h
+++ b/include/arch/nios2/arch.h
@@ -30,7 +30,7 @@ extern "C" {
 #define _NANO_ERR_ALLOCATION_FAIL (3)   /* Kernel Allocation Failure */
 #define _NANO_ERR_SPURIOUS_INT (4)	/* Spurious interrupt */
 
-/* APIs need to support non-byte addressible architectures */
+/* APIs need to support non-byte addressable architectures */
 
 #define OCTET_TO_SIZEOFUNIT(X) (X)
 #define SIZEOFUNIT_TO_OCTET(X) (X)
diff --git a/include/arch/x86/segmentation.h b/include/arch/x86/segmentation.h
index fd55a4d0c91..b67d3274d12 100644
--- a/include/arch/x86/segmentation.h
+++ b/include/arch/x86/segmentation.h
@@ -36,7 +36,7 @@ extern "C" {
 
 
 /* NOTE: We currently do not have definitions for 16-bit segment, currently
- * assume everthing we are working with is 32-bit
+ * assume everything we are working with is 32-bit
  */
 
 #define SEG_TYPE_LDT		0x2
@@ -188,7 +188,7 @@ struct __packed segment_descriptor {
 			/* 1=code 0=data */
 			uint8_t executable:1;
 
-			/* Next 3 fields ctually common to all */
+			/* Next 3 fields actually common to all */
 
 			/* 1=code or data, 0=system type */
 			uint8_t descriptor_type:1;
@@ -490,7 +490,7 @@ static inline uint16_t _get_tss(void)
 /**
  * Get the current global descriptor table
  *
- * @param gdt Pointer to memory to receive GDT pseduo descriptor information
+ * @param gdt Pointer to memory to receive GDT pseudo descriptor information
  */
 static inline void _get_gdt(struct pseudo_descriptor *gdt)
 {
@@ -501,7 +501,7 @@ static inline void _get_gdt(struct pseudo_descriptor *gdt)
 /**
  * Get the current interrupt descriptor table
  *
- * @param idt Pointer to memory to receive IDT pseduo descriptor information
+ * @param idt Pointer to memory to receive IDT pseudo descriptor information
  */
 static inline void _get_idt(struct pseudo_descriptor *idt)
 {
@@ -574,7 +574,7 @@ static inline uint16_t _get_cs(void)
 
 
 /**
- * Get the segement selector for the current data segment
+ * Get the segment selector for the current data segment
  *
  * @return Segment selector
  */