diff --git a/.github/ISSUE_TEMPLATE/ext-source.md b/.github/ISSUE_TEMPLATE/ext-source.md
index 6291a6d0030b5a08cc411af97efcf8597ef3f220..a1681e88e3636afe6a608ae455881baf7b75e1c2 100644
--- a/.github/ISSUE_TEMPLATE/ext-source.md
+++ b/.github/ISSUE_TEMPLATE/ext-source.md
@@ -18,7 +18,7 @@ Brief description of what this software does
 
 ## Mode of integration
 
-Describe whether you'd like to integrate this exernal component in the main tree
+Describe whether you'd like to integrate this external component in the main tree
 or as a module, and why. If the mode of integration is a module, suggest a
 repository name for the module
 
diff --git a/boards/arm/nucleo_f446re/doc/index.rst b/boards/arm/nucleo_f446re/doc/index.rst
index 81be80ee940638f09fcb73a455b507600759a9d6..ab4319eb7ac833b70c3d265bb2a24f1a2af8b301 100644
--- a/boards/arm/nucleo_f446re/doc/index.rst
+++ b/boards/arm/nucleo_f446re/doc/index.rst
@@ -128,7 +128,7 @@ Available pins:
    :height: 540px
    :alt: Nucleo F446RE Morpho connectors (top right)
 
-For mode details please refer to `STM32 Nucleo-64 board User Manual`_.
+For more details please refer to `STM32 Nucleo-64 board User Manual`_.
 
 Default Zephyr Peripheral Mapping:
 ----------------------------------
diff --git a/doc/guides/test/twister.rst b/doc/guides/test/twister.rst
index 0486eb84dc61e3c67609bc1ce710e0115c18246c..11c556634a7b41c3b65bb9aa4971b0be579f7df9 100644
--- a/doc/guides/test/twister.rst
+++ b/doc/guides/test/twister.rst
@@ -173,13 +173,13 @@ testsuite and has to follow basic rules:
 
 #. Each test identifier shall start with a section followed by a subsection
    separated by a dot. For example, a test that covers semaphores in the kernel
-   shall start with ``kernel.sempahore``.
+   shall start with ``kernel.semaphore``.
 
 #. All test identifiers within a testcase.yaml file need to be unique. For
    example a testcase.yaml file covering semaphores in the kernel can have:
 
    * ``kernel.semaphore``: For general semaphore tests
-   * ``kernel.semaphore.stress``: Stress testng semaphores in the kernel.
+   * ``kernel.semaphore.stress``: Stress testing semaphores in the kernel.
 
 #. Depending on the nature of the test, an identifier can consist of at least
    two sections:
diff --git a/doc/reference/bluetooth/mesh/core.rst b/doc/reference/bluetooth/mesh/core.rst
index c5ba8aa359cdc3a135c5d8ad8e0b735a6932b7c5..98ec6bbd3e818ff7133a82ae128d0865f9a6d205 100644
--- a/doc/reference/bluetooth/mesh/core.rst
+++ b/doc/reference/bluetooth/mesh/core.rst
@@ -50,7 +50,7 @@ is called until all RPL entries are written to the flash.
 
 Finding the right balance between @ref CONFIG_BT_MESH_RPL_STORE_TIMEOUT and
 calling @ref bt_mesh_rpl_pending_store may reduce a risk of security
-volnurability and flash wear out.
+vulnerability and flash wear out.
 
 API reference
 **************