diff --git a/.words b/.words
index 66f5340b4..f8673c99b 100644
--- a/.words
+++ b/.words
@@ -1,8 +1,11 @@
 ErrCodeEnhanceYourCalm
+ErrTimeout
 GoAway
 RPC
 RPCs
+TODO
 backoff
+blackhole
 blackholed
 cancelable
 cancelation