| Coschütz | Coschütz |
| Coscoroba Swan | Coscoroba blanc |
| cosecant | cosécante |
| Cosenza | Cosenza |
| cosign | cosigner |
| cosignatory | cosignataire |
| Cosima Wagner | Cosima Wagner |
| Cosimo Rosselli | Cosimo Rosselli |
| Cosimo Tura | Cosmè Tura |
| cosine | cosinus |
| Cosmas Indicopleustes | Cosmas Indicopleustès |
| Cosmas of Prague | Cosmas de Prague |
| Cosmati | Cosmati |
| cosmetic | cosmétique |
| cosmetic industry | industrie cosmétique |
| cosmetic surgeon | chirurgien esthéticien |
| cosmetic surgery | chirurgie esthétique |
| cosmetician | esthéticien |
| cosmetics | cosmétique |
| cosmetologist | esthéticien |
| cosmic | cosmique |
| Cosmic abundance | Abondance cosmique |
| Cosmic Background Explorer | Cosmic Background Explorer |
| Cosmic censorship hypothesis | Censure cosmique |
| Cosmic chemistry | Chimie cosmique |
| Cosmic Cube | Cube cosmique |
| Cosmic distance ladder | Mesure des distances en astronomie |
| Cosmic electrodynamics | Electrodynamique cosmique |
| Cosmic Era list of characters | Liste des personnages de Gundam Seed |
| Cosmic Era Mobile Units | Liste des mobile-suit de Gundam Seed |
| Cosmic gamma ray bursts | Sursaut gamma cosmique |
| Cosmic Gate | Cosmic Gate |
| Cosmic inflation | Inflation cosmique |
| Cosmic microwave background radiation | Fond diffus cosmologique |
| Cosmic neutrino background | Fond cosmologique de neutrinos |
| Cosmic plasmas | Plasma cosmique |
| cosmic radiation | rayonnement cosmique |
| Cosmic ray | Rayon cosmique |
| Cosmic ray astronomy | Astronomie des rayons cosmiqu |
| Cosmic ray showers | Pluie de rayons cosmiques |
| Cosmic ray sources | Source de rayons cosmiques |
| Cosmic strings | Corde cosmique |
| Cosmic year | Annee cosmique |
| Cosmid | Cosmide |
| Cosmo | Côme |
| Cosmobiology | Cosmobiologie |
| Cosmochemistry | Astrochimie |
| cosmodicy | cosmodicée |
| cosmodrome | cosmodrome |
| cosmogony | cosmogonie |
| Cosmographiae Introductio | Planisphère de Waldseemüller |
| Cosmological distance scale | Echelle de distance cosmologi |
| Cosmological models | Modele cosmologique |
| Cosmological Principle | Principe cosmologique |
