- Clyster Noun
- CME Noun
- CMOS Noun
- CMS Noun
- CNC Noun
- Cnemial Adj
- Cnemides Noun
- Cnicin
- Cnidarian Noun
- Cnoidal Adj
- CNS Noun
- Co-author Noun Verb
- Co-authorship Noun
- Co-conspirator Noun
- Co-ed Adj
- Co-op Noun
- Co-operative Adj Noun
- Co-opt Verb
- Co-organizer Noun
- Co-own Verb
- Co-pilot Noun Verb
- Co-worker Noun
- CO2 Noun
- Coaccuser Noun
- Coacervate Noun
- Coacervated Adj
- Coacervation Noun
- Coach Noun Verb
- Coachbox Noun
- Coachbuilding Noun
- Coachee Noun
- Coacher Noun
- Coachful Adj
- Coachhouse Noun
- Coaching Noun
- Coachman Noun
- Coachscrew Noun
- Coachwood Noun
- Coachwork Noun
- Coact Verb
- Coaction Noun
- Coactivation Noun
- Coactive Adj
- Coacxial
- Coacyclic Adj
- Coadaptation Noun
- Coadjutancy Noun
- Coadjutant Adj Noun
- Coadjutor Noun
- Coadjuvancy Noun
- Coadjuvant Adj Noun
- Coadministrator Noun
- Coadopt Verb
- Coadventurer Noun
- Coaeval Adj Noun
- Coagency Noun
- Coagent Noun
- Coagmentation Noun
- Coagulability Noun
- Coagulable Adj