- capped macaque
- coat
- clotheshorse
- capital of bolivia
- cubic decimetre
- cubic decimeter
- charles l'enfant
- chem lab
- call
- cantonment
- chemistry laboratory
- choreography
- chemistry lab
- consonant
- clod
- clumsy person
- chestnut oak
- chenopodium glaucum
- Chinese cork oak
- cork oak
- cereal
- comestible
- committee
- commission
- cuniculus paca
- circuit
- cardiac muscle
- circle
- cardiac pacemaker
- congenital disease
- cat
- ch'in
- ch'in shih huang ti
- chi
- ch'ing dynasty
- ch'ing
- charlatanism
- Christian holy day
- ch'i
- ch'in dynasty
- couch grass
- charlatan
- celestial longitude
- capital of morocco
- channel
- carpenter's plane
- coney
- cony
- chrysothamnus nauseosus
- chimaera