- cod–liver oil
- coeca
- coecilian
- Coe College
- coecum
- coed
- coedit
- coeducation
- coeducations
- coefficient
- coefficient of correlation
- coefficient of friction
- coefficient of self-induction
- coefficient of viscosity
- coefficients
- -coel
- -coel
- coelacanth
- coelacanthid
- coelacanths
- -coele
- coelentera
- coelentera
- coelenterate
- coelenteron