diff --git a/documentation/ref-manual/variables.rst b/documentation/ref-manual/variables.rst
index 26ce53c12d..7f0efb8286 100644
--- a/documentation/ref-manual/variables.rst
+++ b/documentation/ref-manual/variables.rst
@@ -1732,15 +1732,52 @@ system and gives an overview of their function and contents.
       Where :term:`AUTOTOOLS_SCRIPT_PATH` is the location of the of the
       Autotools build system scripts, which defaults to :term:`S`.
 
+   :term:`CONFLICT_COMBINED_FEATURES`
+      When inheriting the :ref:`ref-classes-features_check`
+      class, this variable identifies combined features (see
+      :term:`COMBINED_FEATURES` for what this means) that would be in conflict
+      should the recipe be built. In other words, if the
+      :term:`CONFLICT_COMBINED_FEATURES` variable lists a feature that also
+      appears in :term:`COMBINED_FEATURES` within the current configuration,
+      then the recipe will be skipped, and if the build system attempts to build
+      the recipe then an error will be triggered.
+
    :term:`CONFLICT_DISTRO_FEATURES`
       When inheriting the :ref:`ref-classes-features_check`
-      class, this variable identifies distribution features that would be
+      class, this variable identifies distro features that would be
       in conflict should the recipe be built. In other words, if the
       :term:`CONFLICT_DISTRO_FEATURES` variable lists a feature that also
       appears in :term:`DISTRO_FEATURES` within the current configuration, then
       the recipe will be skipped, and if the build system attempts to build
       the recipe then an error will be triggered.
 
+   :term:`CONFLICT_IMAGE_FEATURES`
+      When inheriting the :ref:`ref-classes-features_check`
+      class, this variable identifies image features that would be
+      in conflict should the recipe be built. In other words, if the
+      :term:`CONFLICT_IMAGE_FEATURES` variable lists a feature that also
+      appears in :term:`IMAGE_FEATURES` within the current configuration, then
+      the recipe will be skipped, and if the build system attempts to build
+      the recipe then an error will be triggered.
+
+   :term:`CONFLICT_MACHINE_FEATURES`
+      When inheriting the :ref:`ref-classes-features_check`
+      class, this variable identifies machine features that would be
+      in conflict should the recipe be built. In other words, if the
+      :term:`CONFLICT_MACHINE_FEATURES` variable lists a feature that also
+      appears in :term:`MACHINE_FEATURES` within the current configuration, then
+      the recipe will be skipped, and if the build system attempts to build
+      the recipe then an error will be triggered.
+
+   :term:`CONFLICT_TUNE_FEATURES`
+      When inheriting the :ref:`ref-classes-features_check`
+      class, this variable identifies tune features that would be
+      in conflict should the recipe be built. In other words, if the
+      :term:`CONFLICT_TUNE_FEATURES` variable lists a feature that also
+      appears in :term:`TUNE_FEATURES` within the current configuration, then
+      the recipe will be skipped, and if the build system attempts to build
+      the recipe then an error will be triggered.
+
    :term:`CONVERSION_CMD`
       This variable is used for storing image conversion commands.
       Image conversion can convert an image into different objects like: