diff --git a/playground/pytest/wscript b/playground/pytest/wscript
index 0231de1e..f2dac3cf 100644
--- a/playground/pytest/wscript
+++ b/playground/pytest/wscript
@@ -65,7 +65,7 @@ def build(bld):
 		install_from = 'src')
 
 	# The bar module has a non-Python dependency to resource.txt which we want to copy,
-	# but in this case we cannot add resource.txt to the sources because there's not feature
+	# but in this case we cannot add resource.txt to the sources because there's no feature
 	# for it. Therefore, we use the attribute buildcopy_source instead.
 	bld(name             = 'bar',
 		features         = 'py buildcopy',
diff --git a/waflib/Tools/c_config.py b/waflib/Tools/c_config.py
index c9c82e3b..a8731b70 100644
--- a/waflib/Tools/c_config.py
+++ b/waflib/Tools/c_config.py
@@ -240,7 +240,7 @@ def validate_cfg(self, kw):
 @conf
 def exec_cfg(self, kw):
 	"""
-	Executes ``pkg-config`` or other ``-config`` applications to colect configuration flags:
+	Executes ``pkg-config`` or other ``-config`` applications to collect configuration flags:
 
 	* if atleast_pkgconfig_version is given, check that pkg-config has the version n and return
 	* if modversion is given, then return the module version
diff --git a/waflib/extras/xcode6.py b/waflib/extras/xcode6.py
index 43dd7e40..93df8c8d 100644
--- a/waflib/extras/xcode6.py
+++ b/waflib/extras/xcode6.py
@@ -287,7 +287,7 @@ class PBXGroup(XCodeNode):
 		Recursively search this group for an existing PBXFileReference. Returns None
 		if none were found.
 
-		The reason you'd want to reuse existing PBXFileReferences from a PBXGroup is that XCode doesn't like PBXFileReferences that aren't part of a PBXGroup heirarchy.
+		The reason you'd want to reuse existing PBXFileReferences from a PBXGroup is that XCode doesn't like PBXFileReferences that aren't part of a PBXGroup hierarchy.
 		If it isn't, the consequence is that certain UI features like 'Reveal in Finder'
 		stops working.
 		"""