clack / claque [klæk]
clack – n. & v. – n. – 1. a clacking sound; 2. a clacker, a chatter box, a talkative person; v. – 1. make a sharp sound as of hard objects struck together; 2. cause something to make a clacking sound, as by hitting it on something
claque – n. – a group of people hired to applaud in the theatre, etc.