| Nederlands | betekenis | Engels | Frans |
| accommoderen | aanpassen (ooglens) | accommodate | accommoder |
| coaguleren | samenklonteren | coagulate | coaguler |
| coalitie | verbond | coalition | coalition |
| coaxiaal | met zelfde as | coaxial | coaxial |
| coëfficiënt | constante faktor | coefficient | coefficient |
| coëxisteren | samen bestaan | coexist | coexister |
| - | overtuigend | cogent (coagent) | - |
| cogito ergo sum | ik denk dus ik besta | - | - |
| - | verwant | cognate | - |
| cognitief | kennis- | cognitive | cognitif |
| cohabitatie | samenwoning | cohabitation | cohabitation |
| coherent | samenhangend | coherent | cohérent |
| cohesie | samenhang | cohesion | cohésion |
| coïncident | samenvallend | coincident | coïncident |
| coïtus | geslachtsdaad | coition | coït |
| collaboreren | meewerken met vijand | collaborate | collaborer |
| - | ineenstorten | collapse | - |
| collector | verzamelaar | collector | collecteur |
| collega | ambtgenoot | colleague | collègue |
| - | botsing | collision | collision |
| colloqium | samenspraak | colloquium | colloque |
| - | gevecht | combat | combat |
| combineren | samenvoegen | combine | combiner |
| comestibles | etenswaren | comestibles | comestibles |
| comfort | gerieflijkheid | comfort | confort |
| commando | bevel | command | commandement |
| commemoreren | herdenken | commemorate | commémorer |
| commentaar | aantekening, (kritische) opmerking | comment | commentaire |
| commercie | handel | commerce | commerce |
| commissie | werkgroep | commission | commission |
| - | geschikt | - | commode |
| commotie | opschudding | commotion | commotion |
| commuun | gemeenschappelijk | common | commun |
| compact | dicht opeen | compact | compact |
| - | vergelijken | compare | comparer |
| compatibel | verenigbaar | compatible | compatible |
| compenseren | vergoeden | compensate | compenser |
| competent | bevoegd; bekwaam | competent; expert | compétent |
| complement | aanvulling tot geheel | complement | complément |
| - | inwilliging; naleving | compliance | - |
| complicatie | verwikkeling | complication | complication |
| component | samenstellend deel | component | composant |
| - | gedrag | - | comportement |
| - | samengesteld; verbinding (chem.) | compound | composé |
| comprimeren | samenpersen | compress | comprimer |
| compromis | schikking | compromise | compromis |
| compulsie | aandrijving; dwang | compulsion | compulsion |
| computer | gegevensverwerker | computer | (ordinateur) |
vanaf con- : cum-2