diff --git a/pluralize.js b/pluralize.js
index 4ef4eb6..81b0f30 100644
--- a/pluralize.js
+++ b/pluralize.js
@@ -360,12 +360,23 @@
   [
     // Singular words with no plurals.
     'advice',
+    'adulthood',
     'agenda',
+    'aid',
+    'alcohol',
+    'ammo',
+    'athletics',
     'bison',
+    'blood',
     'bream',
     'buffalo',
+    'butter',
     'carp',
+    'cash',
     'chassis',
+    'chess',
+    'clothing',
+    'commerce',
     'cod',
     'cooperation',
     'corps',
@@ -378,6 +389,7 @@
     'excretion',
     'expertise',
     'flounder',
+    'fun',
     'gallows',
     'garbage',
     'graffiti',
@@ -386,16 +398,19 @@
     'herpes',
     'highjinks',
     'homework',
+    'housework',
     'information',
     'jeans',
     'justice',
     'kudos',
     'labour',
+    'literature',
     'machinery',
     'mackerel',
     'media',
     'mews',
     'moose',
+    'music',
     'news',
     'pike',
     'plankton',
@@ -403,6 +418,7 @@
     'pollution',
     'premises',
     'rain',
+    'research',
     'rice',
     'salmon',
     'scissors',
@@ -414,7 +430,11 @@
     'staff',
     'swine',
     'trout',
+    'traffic',
+    'transporation',
     'tuna',
+    'wealth',
+    'welfare',
     'whiting',
     'wildebeest',
     'wildlife',