diff --git a/STYLE_GUIDE.md b/STYLE_GUIDE.md
index 51d4696c7..e18168f3c 100644
--- a/STYLE_GUIDE.md
+++ b/STYLE_GUIDE.md
@@ -173,7 +173,7 @@
 
 ## Standards
 
-- OpenThread uses and enfores both Python 2 and Python 3.  Support for Python 2 is a result of the fact that some current Linux distributions and Macs are still using 2.x as default.
+- OpenThread uses and enforces both Python 2 and Python 3.  Support for Python 2 is a result of the fact that some current Linux distributions and Macs are still using 2.x as default.
 
 ## Conventions and Best Practices
 
diff --git a/include/openthread/platform/radio.h b/include/openthread/platform/radio.h
index 0d827e616..af157925b 100644
--- a/include/openthread/platform/radio.h
+++ b/include/openthread/platform/radio.h
@@ -328,7 +328,7 @@ otError otPlatRadioClearSrcMatchShortEntry(otInstance *aInstance, const uint16_t
  * Remove an extended address from the source address match table.
  *
  * @param[in]  aInstance    The OpenThread instance structure.
- * @param[in]  aExtAddress  The extended address to be removed stoerd in little-endian byte order.
+ * @param[in]  aExtAddress  The extended address to be removed stored in little-endian byte order.
  *
  * @retval OT_ERROR_NONE        Successfully removed the extended address from the source match table.
  * @retval OT_ERROR_NO_ADDRESS  The extended address is not in source address match table.
diff --git a/src/core/meshcop/dataset_manager.cpp b/src/core/meshcop/dataset_manager.cpp
index 501284197..4456569b4 100644
--- a/src/core/meshcop/dataset_manager.cpp
+++ b/src/core/meshcop/dataset_manager.cpp
@@ -62,11 +62,11 @@ namespace ot {
 namespace MeshCoP {
 
 DatasetManager::DatasetManager(ThreadNetif &aThreadNetif, const Tlv::Type aType, const char *aUriSet,
-                               const char *aUriGet, Timer::Handler aTimerHander):
+                               const char *aUriGet, Timer::Handler aTimerHandler):
     ThreadNetifLocator(aThreadNetif),
     mLocal(aThreadNetif.GetInstance(), aType),
     mNetwork(aType),
-    mTimer(aThreadNetif.GetInstance(), aTimerHander, this),
+    mTimer(aThreadNetif.GetInstance(), aTimerHandler, this),
     mUriSet(aUriSet),
     mUriGet(aUriGet)
 {
diff --git a/src/core/meshcop/dataset_manager.hpp b/src/core/meshcop/dataset_manager.hpp
index e5b8bf47f..5dd4dd62a 100644
--- a/src/core/meshcop/dataset_manager.hpp
+++ b/src/core/meshcop/dataset_manager.hpp
@@ -131,7 +131,7 @@ protected:
      *
      */
     DatasetManager(ThreadNetif &aThreadNetif, const Tlv::Type aType, const char *aUriSet, const char *aUriGet,
-                   TimerMilli::Handler aTimerHander);
+                   TimerMilli::Handler aTimerHandler);
 
     /**
      * This method restores the Operational Dataset from non-volatile memory.
diff --git a/src/core/net/dhcp6_client.hpp b/src/core/net/dhcp6_client.hpp
index 4c6919089..c63590c9f 100644
--- a/src/core/net/dhcp6_client.hpp
+++ b/src/core/net/dhcp6_client.hpp
@@ -182,7 +182,7 @@ public:
     /**
      * This method update addresses that shall be automatically created using DHCP.
      *
-     * @param[in]     aInstance     A pointer to openThread instance.
+     * @param[in]     aInstance     A pointer to OpenThread instance.
      * @param[inout]  aAddresses    A pointer to an array containing addresses created by this module.
      * @param[in]     aNumAddresses The number of elements in aAddresses array.
      * @param[in]     aContext      A pointer to IID creator-specific context data.
diff --git a/src/core/utils/slaac_address.hpp b/src/core/utils/slaac_address.hpp
index e1816f7ac..771410f1c 100644
--- a/src/core/utils/slaac_address.hpp
+++ b/src/core/utils/slaac_address.hpp
@@ -72,7 +72,7 @@ public:
     /**
      * This function update addresses that shall be automatically created using SLAAC.
      *
-     * @param[in]     aInstance     A pointer to openThread instance.
+     * @param[in]     aInstance     A pointer to OpenThread instance.
      * @param[inout]  aAddresses    A pointer to an array containing addresses created by this module.
      * @param[in]     aNumAddresses The number of elements in aAddresses array.
      * @param[in]     aIidCreator   A pointer to function that will be used to create IID for IPv6 addresses.