- acacia
- acai
- action
- antic
- attic
- cacao
- cacti
- cancan
- canna
- cannon
- cannot
- canon
- canonization
- cant
- cantata
- cantina
- canton
- catatonia
- catatonic
- cation
- ciao
- citation
- coact
- coaction
- coat
- coati
- coca
- cocci
- cocoa
- cocoon
- coin
- concoct
- concoction
- conic
- connotation
- contact
- contain
- coot
- cotton
- icon
- iconic
- inaction
- incant
- incantation
- intact
- ionic
- niacin
- octant
- tacit
- taco
- tact
- tactic
- tactician
- tannic
- tinct
- titanic
- toccata
- tonic
- zinc