diff --git a/docs/spelling_wordlist.txt b/docs/spelling_wordlist.txt
index 1d5a949..9bb4af8 100644
--- a/docs/spelling_wordlist.txt
+++ b/docs/spelling_wordlist.txt
@@ -6,6 +6,7 @@ Centroids
 centroids
 Checkpointing
 Cholesky
+contravariant
 covariances
 dataclass
 dataloader