diff --git a/dlib/cmd_line_parser/cmd_line_parser_check_abstract.h b/dlib/cmd_line_parser/cmd_line_parser_check_abstract.h
index 79758e45d..08aed5314 100644
--- a/dlib/cmd_line_parser/cmd_line_parser_check_abstract.h
+++ b/dlib/cmd_line_parser/cmd_line_parser_check_abstract.h
@@ -56,7 +56,7 @@ namespace dlib
                 - option_is_defined(option_name) == true
                 - T is not a pointer type
             ensures
-                - all the arguments for the given option are convertable
+                - all the arguments for the given option are convertible
                   by string_cast<T>() to an object of type T.
             throws
                 - std::bad_alloc
@@ -83,8 +83,8 @@ namespace dlib
                 - first <= last
                 - T is not a pointer type
             ensures
-                - all the arguments for the given option are convertable
-                  by string_cast<T>() to an object of type T and the resuting value is
+                - all the arguments for the given option are convertible
+                  by string_cast<T>() to an object of type T and the resulting value is
                   in the range first to last inclusive.
             throws
                 - std::bad_alloc
@@ -111,7 +111,7 @@ namespace dlib
                 - T is not a pointer type
             ensures
                 - for each argument to the given option:
-                    - this argument is convertable by string_cast<T>() to an object of
+                    - this argument is convertible by string_cast<T>() to an object of
                       type T and the resulting value is equal to some element in the
                       arg_set array.
             throws
diff --git a/dlib/svm/empirical_kernel_map_abstract.h b/dlib/svm/empirical_kernel_map_abstract.h
index d15e699ee..7331cec18 100644
--- a/dlib/svm/empirical_kernel_map_abstract.h
+++ b/dlib/svm/empirical_kernel_map_abstract.h
@@ -122,7 +122,7 @@ namespace dlib
         );
         /*!
             requires
-                - T must be a dlib::matrix type or something convertable to a matrix via vector_to_matrix()
+                - T must be a dlib::matrix type or something convertible to a matrix via vector_to_matrix()
                   (e.g. a std::vector)
                 - is_vector(basis_samples) == true
                 - basis_samples.size() > 0