cast, caste.
cart, carte, quart (cards and fencing).
count (s.), count (v.).
counter (opp.), counter (of shop), counter (in games), &c.
couch (coucher), couch (grass).
caddy (lad), caddy (box).
can (s.), can (v.).
cannon, canon bis.
currant, current.
curry (food), curry (comb).