diff --git a/waflib/Tools/ccroot.py b/waflib/Tools/ccroot.py
index 8e16fe6c..579d5b2b 100644
--- a/waflib/Tools/ccroot.py
+++ b/waflib/Tools/ccroot.py
@@ -111,7 +111,7 @@ def apply_incpaths(self):
 		tg = bld(features='includes', includes='.')
 
 	The folders only need to be relative to the current directory, the equivalent build directory is
-	added automatically (for headers created in the build directory). This enable using a build directory
+	added automatically (for headers created in the build directory). This enables using a build directory
 	or not (``top == out``).
 
 	This method will add a list of nodes read by :py:func:`waflib.Tools.ccroot.to_incnodes` in ``tg.env.INCPATHS``,
diff --git a/waflib/Tools/javaw.py b/waflib/Tools/javaw.py
index 678a8d95..9daed395 100644
--- a/waflib/Tools/javaw.py
+++ b/waflib/Tools/javaw.py
@@ -209,7 +209,7 @@ def java_use_rec(self, name, **kw):
 	else:
 		y.post()
 		# Add generated JAR name for CLASSPATH. Task ordering (set_run_after)
-		# is already guaranted by ordering done between the single tasks
+		# is already guaranteed by ordering done between the single tasks
 		if hasattr(y, 'jar_task'):
 			self.use_lst.append(y.jar_task.outputs[0].abspath())
 
diff --git a/waflib/extras/fast_partial.py b/waflib/extras/fast_partial.py
index b3af513b..d5b61448 100644
--- a/waflib/extras/fast_partial.py
+++ b/waflib/extras/fast_partial.py
@@ -17,7 +17,7 @@ Usage::
 	def options(opt):
 		opt.load('fast_partial')
 
-Assuptions:
+Assumptions:
 * Mostly for C/C++/Fortran targets with link tasks (object-only targets are not handled)
 * For full project builds: no --targets and no pruning from subfolders
 * The installation phase is ignored