diff --git a/doc/doxyfile.in b/doc/doxyfile.in
index 7bbe9bc..baf04c1 100644
--- a/doc/doxyfile.in
+++ b/doc/doxyfile.in
@@ -1072,7 +1072,7 @@ HTML_STYLESHEET        =
 # defined cascading style sheet that is included after the standard style sheets
 # created by doxygen. Using this option one can overrule certain style aspects.
 # This is preferred over using HTML_STYLESHEET since it does not replace the
-# standard style sheet and is therefor more robust against future updates.
+# standard style sheet and is therefore more robust against future updates.
 # Doxygen will copy the style sheet file to the output directory. For an example
 # see the documentation.
 # This tag requires that the tag GENERATE_HTML is set to YES.
diff --git a/doc/web_doxyfile.in b/doc/web_doxyfile.in
index 7b4c934..938ecd1 100644
--- a/doc/web_doxyfile.in
+++ b/doc/web_doxyfile.in
@@ -1072,7 +1072,7 @@ HTML_STYLESHEET        =
 # defined cascading style sheet that is included after the standard style sheets
 # created by doxygen. Using this option one can overrule certain style aspects.
 # This is preferred over using HTML_STYLESHEET since it does not replace the
-# standard style sheet and is therefor more robust against future updates.
+# standard style sheet and is therefore more robust against future updates.
 # Doxygen will copy the style sheet file to the output directory. For an example
 # see the documentation.
 # This tag requires that the tag GENERATE_HTML is set to YES.
diff --git a/include/json/config.h b/include/json/config.h
index 9410449..7d34692 100644
--- a/include/json/config.h
+++ b/include/json/config.h
@@ -80,7 +80,7 @@
 
 // In c++11 the override keyword allows you to explicitly define that a function
 // is intended to override the base-class version.  This makes the code more
-// managable and fixes a set of common hard-to-find bugs.
+// manageable and fixes a set of common hard-to-find bugs.
 #if __cplusplus >= 201103L
 # define JSONCPP_OVERRIDE override
 # define JSONCPP_NOEXCEPT noexcept
diff --git a/include/json/writer.h b/include/json/writer.h
index 2278bc8..9e7adde 100644
--- a/include/json/writer.h
+++ b/include/json/writer.h
@@ -152,7 +152,7 @@ public:
  *
  * The JSON document is written in a single line. It is not intended for 'human'
  *consumption,
- * but may be usefull to support feature such as RPC where bandwith is limited.
+ * but may be useful to support feature such as RPC where bandwidth is limited.
  * \sa Reader, Value
  * \deprecated Use StreamWriterBuilder.
  */
diff --git a/src/test_lib_json/jsontest.h b/src/test_lib_json/jsontest.h
index 955317d..dd32851 100644
--- a/src/test_lib_json/jsontest.h
+++ b/src/test_lib_json/jsontest.h
@@ -270,7 +270,7 @@ TestResult& checkStringEqual(TestResult& result,
       return new Test##FixtureType##name();                                    \
     }                                                                          \
                                                                                \
-  public: /* overidden from TestCase */                                        \
+  public: /* overridden from TestCase */                                        \
     const char* testName() const JSONCPP_OVERRIDE { return #FixtureType "/" #name; }    \
     void runTestCase() JSONCPP_OVERRIDE;                                                \
   };                                                                           \