diff --git a/words/scales.txt b/words/scales.txt
index fdec078ee..c8041c0fc 100644
--- a/words/scales.txt
+++ b/words/scales.txt
@@ -392,3 +392,9 @@ sirius
 vector
 cherimoya
 shilling
+kettle
+kitchen
+fahrenheit
+rankine
+piano
+ruler