ASL Sign Language Dictionary

Search and compare thousands of words and phrases in American Sign Language (ASL). The largest collection online.

Android app on Google Play
NEW View all these signs in the Sign ASL Android App. Download for free.


How to sign: something that causes an important event to happen
"the invasion acted as a catalyst to unite the country";

Catalyst in ASL Watch how to sign Catalyst in American Sign Language
Catalyst - DeafTec More details
Embed this video

Categories: causal agency, causal agent, cause

Sign not right? Or know a different sign?

Upload your sign now.

Share »   Facebook Twitter Pinterest Email