- comfortContentment, ease.
- contemporaryFrom the same time period, coexistent in time; contemporaneous.
- collaborationThe act of collaborating.
- combineTo bring (two or more things or activities) together; to unite.
- conquerTo defeat in combat; to subjugate.
- constellationAn arbitrary formation of stars perceived as a figure (especially one from mythology) or pattern, or a division of the sky including it, especially one officially recognized by astronomers; an asterism.
- convoyOne or more merchant ships sailing in company to the same general destination under the protection of naval vessels.
- concentricHaving a common center.
- connotationA meaning of a word or phrase that is (subjectively) suggested or implied (implicit), as contrasted with a denotation, which is the explicit and objective meaning. A characteristic of words or phrases, or of the contexts that words and phrases are used in.
- conurbationA continuous aggregation of built-up urban communities created as a result of urban sprawl.
- condescendTo come down or go down; to descend.
- consilienceThe concurrence of multiple inductions drawn from different data sets.
- coevalOf the same age or era; contemporary.
- accouterTo furnish with dress or equipments, especially those for military service.
- con-Unite: to unite into a collection indicated by the root word.
- condoleFollowed by with: to express condolence to, or sympathetic sorrow with, someone; to lament in sympathy with someone.
- consilientOf academic disciplines, displaying consilience.
- constultTo act together in a foolish or stupid manner, to become as great a fool as those around, to behave as much in a foolish or stupid manner as those around.
- contournéFacing sinister instead of dexter.