| Commodus | Commodo |
| common | comune |
| common agreement | accordi comuni |
| common agricultural policy | politica agricola comune |
| common agricultural policy of the EU | politica agricola comune |
| common alder | ontano comune |
| Common basilisk | Basiliscus |
| Common blackbird | Turdus merula |
| Common Bluebell | Scilla |
| common chickweed | centocchio comune |
| Common chiffchaff | Phylloscopus collybita |
| Common Chimpanzee | Pan troglodytes |
| Common cold | Raffreddore comune |
| common commercial policy | politica commerciale comune |
| common crane | gru |
| Common Crossbill | Loxia curvirostra |
| Common dace | Corylus avellana |
| common death adder | acantofide |
| common denominator | denominatore comune |
| Common descent | Ultimo antenato comune universale |
| Common Desktop Environment | Common Desktop Environment |
| Common Development and Distribution License | Common Development and Distribution License |
| common divisor | divisore comune |
| Common Duiker | Sylvicapra grimmia |
| Common Dwarf Mongoose | Helogale parvula |
| Common Eider | Somateria mollissima |
| Common Era | Era volgare |
| Common ethanol fuel mixtures | Miscela di etanolo |
| Common European Framework of Reference for Languages | CEFR |
| common factor | divisore comune |
| Common Fig | Ficus carica |
| Common Fisheries Policy | Politica comune della pesca |
| Common Foreign and Security Policy | Politica estera e di sicurezza comune |
| Common fractions | Frazione |
| Common Frog | Rana temporaria |
| Common Gateway Interface | Common Gateway Interface |
| Common Genet | Genetta genetta |
| Common grace | Grazia comune |
| common ground | terreno comune |
| Common Guillemot | Uria aalge |
| common gull | gavina |
| Common Hardware Reference Platform | Common Hardware Reference Platform |
| Common Hawthorn | Crataegus monogyna |
| Common Hazel | Corylus avellana |
| Common Hogweed | Heracleum sphondylium |
| Common Horse-chestnut | Aesculus hippocastanum |
| Common horsechestnut | Aesculus hippocastanum |
| Common house martin | Delichon urbica |
| Common house-martin | Delichon urbica |
| Common inn stay | Servizio assistenza garanzia |
| Common Intermediate Language | Common Intermediate Language |
| Common Iora | Aegithina tiphia |
| common kestrel | gheppio |
| Common Kingfisher | Alcedo atthis |
| Common Language Runtime | Common Language Runtime |
| common lavender | lavanda vera |
| Common Medlar | Mespilus germanica |
| Common mora | Municipalità di Mora |
| common multiple | multiplo comune |
| common noun | nome comune |
| Common Octopus | Octopus vulgaris |
| common people | popolo |
| common person | plebeo |
| Common Pheasant | Phasianus colchicus |
| Common Pipistrelle | Pipistrellus pipistrellus |
| Common Pochard | Aythya ferina |
| Common Public License | Common Public License |
| Common Raccoon | Procyon lotor |
| Common Redpoll | Carduelis flammea |
| Common Redshank | Tringa totanus |
| common redstart | codirosso |
| Common Sandpiper | Actitis hypoleucos |
| Common seahorse | Hippocampus kuda |
| common sense | senso |
| Common Shag | Phalacrocorax aristotelis |
| Common skate | Skathi |
| Common smooth-hound | Mustelus mustelus |
| Common soft wheat | Triticum aestivum |
| Common sole | Solea solea |
| common tariff policy | politica tariffaria comune |
| Common Teal | Anas crecca |
| Common Telerin | Telerin comune |
| Common tender | Moneta di corso legale |
| Common Tern | Sterna hirundo |
| Common Treecreeper | Certhia familiaris |
| Common Unix Printing System | Common unix printing system |
| Common white-eye | Aythya nyroca |
| common whitefish | lavarello |
| Common Wombat | Vombatus ursinus |
| Common wood pigeon | Columba palumbus |
| Common-mode rejection ratio | Rapporto di reiezione di modo comune |
| Common-pool resource | Beni pubblici |
| commonalty | popolo |
| commoner | plebeo |
| commonly | generalmente |
| commonplace | trito |
| commons | popolo |
| Commonwealth | il Commonwealth Britannico |
| Commonwealth Games | Giochi del Commonwealth |
| Commonwealth of Australia | Australia |
| Commonwealth of Dominica | Dominica |
| Commonwealth of Independent States | Comunità degli Stati Indipendenti |
| Commonwealth of Nations | Commonwealth delle nazioni |
| Commonwealth of the Bahamas | Bahama |
| Commonwealth realm | Reame del Commonwealth |
| Commonwealth Stadium | Commonwealth Stadium |
| commotion | agitazione |
| Commugny | Commugny |
| communal | comune |
| commune | comune |
| Communes of France | Comuni della Francia |
| Communes of Mayotte | Comuni di Mayotte |
| Communes of Romania | Comuni della Romania |
| Communes of the Guadeloupe department | Comuni della Guadalupa |
| Communes of the Guyane department | Comuni della Guyana Francese |
| Communes of the Hauts-de-Seine department | Comuni degli Hauts-de-Seine |
| Communes of the Martinique department | Comuni della Martinica |
| Communes of the Réunion department | Comuni della Réunion |
| communicable | infettivo |
| communicant | comunicando |
| communicate | trasmettere |
| communicating | comunicante |
| communication | comunicazione |
| Communication design | Communication design |
| Communication diagram | Communication Diagram |
| Communication satellite | Rete satellitare |
| Communication studies | Comunicazione |
| communication trench | tratto di comunicazione |
| communications | comunicazione |
| Communications in San Marino | Comunicazioni a San Marino |
| communications industry | industria delle comunicazioni |
| communications policy | politica della comunicazione |
| communications system | sistema di comunicazioni |
| Communications-electronics | Ingegneria delle telecomunicazioni |
| Communicationssprache | Communicationssprache |
| communicative | comunicativo |
| communion | comunione |
| Communion and Liberation | Comunione e Liberazione |
| communiqué | comunicato |
| communism | comunismo |
| communist | comunista |
| Communist Alternative Party | Partito di Alternativa Comunista |
| Communist Party of Belgium | Partito comunista |
| Communist Party of Chile | Partito Comunista Cileno |
| Communist Party of China | Partito Comunista Cinese |
| Communist Party of Cuba | Partito Comunista Cubano |
| Communist Party of Finland | Partito Comunista Finlandese |
| Communist Party of Germany | Partito Comunista di Germania |
| Communist Party of Kampuchea | Partito Comunista di Kampuchea |
| Communist Party of Nepal | Partito Comunista Maoista Nepalese |
| Communist Party of Spain | Partito Comunista di Spagna |
| Communist Party of the Philippines | Partito Comunista delle Filippine |
| Communist Party of the Russian Federation | Partito Comunista della Federazione Russa |
| Communist Party of Vietnam | Partito Comunista del Vietnam |
| Communist Party USA | Partito Comunista Americano |
| Communist Refoundation Party | Partito della Rifondazione Comunista |
