| Compiègne | Compiègne |
| Complementary and alternative medicine | Zdravilstvo |
| complete | dokončan |
| completely | popôlnoma |
| complex formation | tvorba kompleksa |
| Complex instruction set computer | CISC |
| Complex integer | Kompleksno število |
| Complex number | Kompleksno število |
| complexing agent | snov |
| complexity | zapletenost |
| compliance | skladnost |
| Component Object Model | COM |
| composer | skladatelj |
| Compositae | Nebinovke |
| Composite number | Sestavljeno število |
| composite pollution | kombinirano onesnaženje |
| composition of population | sestava prebivalstva |
| compost | kompost |
| compostable waste | primerni za kompostiranje |
| composting | kompostiranje |
| composting by producer | kompostiranje |
| compound word | sestavljenka |
| comprehension | razumevanje |
| Compress | Zgostiti |
| compression | stiskanje |
| compressor | kompresor |
| Comprize | Vsebovati |
| compromise | kompromis |
| Compton | Compton |
| Compton effect | Comptonov pojav |
| Compton scattering | Comptonov pojav |
| Computational geometry | Računalniška geometrija |
| computer | računalnik |
| Computer Aided Manufacturing | Računalniško podprta proizvodnja |
| Computer algebra system | Programi za simbolno računanje |
| Computer and video games | Računalniška igra |
| Computer architecture | Arhitektura |
| Computer display | Monitor |
| Computer Engineering | Računalniško programiranje |
| Computer file | Datoteka |
| Computer game bot | Kost |
| Computer gaming software | Racunalniska igra |
| Computer Go | Go |
| Computer hardware | Strojna oprema |
| computer language | programski jezik |
| Computer network | Omreževanje |
| Computer networking | Omreževanje |
| Computer numeric control | NC |
| Computer printer | Tiskalnik |
| Computer program | Programska oprema |
| Computer programming | Računalniško programiranje |
| computer science | informatika |
| Computer sciences | Računalništvo |
| Computer software | Programska oprema |
| Computer surveillance | SIGINT |
| Computer virus | Računalniški virus |
| Computer-aided design | Računalniško podprto načrtovanje |
| Computing | Računalništvo |
| Computing amplifier | Operacijski ojačevalnik |
| Computing technology | Računalništvo |
| comrade | tovarišica |
| Comtat Venaissin | Grofija Venaissin |
| Comté | Šajerska |
| conceive | zanositi |
| Concentration | Koncentracija |
| concentration camp | koncentracijsko taborišče |
| concept of environment | okoljski koncept |
| concerto | koncert |
| Concerto for Orchestra | Koncert za orkester |
| Concerto in F | Koncert v F |
| concession | izključna pravica |
| Concierto de Aranjuez | Concierto de Aranjuez |
| Concise list of Roman Emperors | Seznam rimskih cesarjev |
| Concord | Akord |
| Concordat of Worms | Wormski konkordat |
| Concorde | Concorde |
| Concorde Agreement | Pogodba Concorde |
| Concotion | Priprava |
| concrete | beton |
| concrete products industry | proizvodnja betonskih izdelkov |
| Concrete-mixer | Mešalec betona |
| Concurrent lines | Šop premic |
| condensation | kondenzacija |
| Condensator | Kondenzator |
| condensed milk | kondenzirano mleko |
| Condiseration | Čislo |
| Condoleezza Rice | Condoleezza Rice |
| condom | kondom |
| Condor Legion | Legija Kondor |
| Conducting | Električni prevodnik |
| conductivity | prevodnost |
| conductor | dirigent |
| Cone | Storž |
| Confederation | Federacija |
| Confederation of African Football | Afriška nogometna konfederacija |
| Confession | Spoved |
| Confession of faith | Izpoved vere |
| Confessions Tour | Confessions tour |
| confidential | zaupen |
| Configuration | Ozvezdje |
| Confirmation | Birma |
| Confirmation class | Birma |
| conflagration | požar |
| Conflans-Sainte-Honorine | Conflans-Sainte-Honorine |
| Conflict | Vojna |
| conflict of aims | križanje ciljev |
| conflict of interests | križanje interesov |
| conform | adaptirati |
| Confucianism | Konfucionizem |
| Confucius | Konfucij |
| Confédération Mondiale des Activités Subaquatiques | CMAS |
| Congo | Kongo |
| Congo River | Kongo |
| Congo-Brazzaville | Republika Kongo |
| Congo-Kinshasa | Demokratična republika Kongo |
| congratulate | čestitati |
| congratulations | čestitke |
| Congregation for Bishops | Kongregacija za škofe |
| Congregation for Institutes of Consecrated Life and Societies of Apostolic Life | Kongregacija za ustanove posvečenega življenja in družbe apostolskega življenja |
| Congregation for the Causes of Saints | Kongregacija za zadeve svetnikov |
| Congregation for the Clergy | Kongregacija za kler |
| Congregation for the Oriental Churches | Kongregacija za orientalske cerkve |
| Congregational | Francoska občina |
| congress | zbor |
| Congress of Aix-la-Chapelle | Aachenski kongres |
| Congress of Berlin | Berlinski kongres |
| Congress of Vienna | Dunajski kongres |
| Conic section | Stožnica |
| conifer | iglavec |
| Conifer cone | Stožek |
| coniferous forest | iglasti gozd |
| coniferous tree | iglavec |
| Conjuction | Konjunkcija |
| Connaught Engineering | Connaught Engineering |
| Connecticut | Connecticut |
| Connecticut River | Connecticut River |
| Connew | Connew |
| connote | namigovati |
| Conny Andersson | Conny Andersson |
| Conon of Samos | Konon |
| Conrad Celtes | Konrad Celtis |
| conscience | vest |
| conscientiousness | véstnost |
| conscript | naboren |
| conscription | nabor |
| consensus | dogovor |
| conservation | ohranjanje |
| Conservation biology | Varstvena biologija |
| Conservation of energy | Prvi zakon termodinamike |
| conservation of monuments | ohranjanje spomenikov |
| conservation policy | politika ohranjanja |
| Conservation status | Ranljiva vrsta |
| Conservative force | Konservativna sila |
| Conservatoire de Paris | Pariški glasbeni konservatorij |
| Consicousness | Znanje |
| Consolation of Philosophy | O utehi filozofije |
| Console game | Računalniška igra |
| Consonance and dissonance | Konsonanca in disonanca |
| Consonant | Soglasnik |
| conspiracy | zarota |
| conspiracy theory | teorija zarote |
| Constalletion | Ozvezdje |
| Constance | Bodensko jezero |
| Constans II | Stalen |
| Constantin Carathéodory | Constantin Carathéodory |
| Constantinople | Istanbul |
| Constellation | Ozvezdje |
| Constitition | Fizika |
| Constitution | Ustava |
| Constitution of Brazil | Minimalna plača v Sloveniji |
| Constitution of Portugal | Ustava |
| Constitution of Slovenia | Ustava Republike Slovenije |
| Constitution of Sweden | Ustava |
| Constitution of the Socialist Federal Republic of Yugoslavia | Ustava Socialistične federativne republike Jugoslavije |
| Constitution State | Connecticut |
| constitutional law | ustavno pravo |
| Constructed script | Umetna pisava |
| construction equipment | gradbena oprema |
| construction noise | hrup gradbenih dejavnosti |
| construction policy | gradbena politika |
| Construction steel | Konstrukcijsko jeklo |
| construction technology | gradbena tehnologija |
| construction with recycled material | gradnja z recikliranim materialom |
| construction work | gradbene dejavnosti |
| Constructivism in international relations | Konstruktivizem |
| Constructivist architecture | Konstruktivizem |
| Constructivist epistemology | Konstruktivizem |
| consultancy | svetovanje |
| consultation | posvetovanje |
| consumer group | potrošniška skupina |
| consumer information | potrošniške informacije |
| consumer product | potrošniški izdelek |
| consumer protection | varstvo potrošnikov |
| consumer waste | gospodinjski odpadki |
| consumption | poraba |
| consumption pattern | model porabe |
| container | zabojnik |
