| common factor | fator comum |
| Common Fig | Figo |
| Common Foreign and Security Policy | Política Externa e de Segurança Comum |
| Common fractions | Fração |
| Common Frog | Anura |
| Common Gateway Interface | CGI |
| Common grace | Graça comum |
| common ground | pontos comuns |
| common gull | gaivota |
| Common Hardware Reference Platform | CHRP |
| Common hepatic artery | Artéria hepática comum |
| Common Horse-chestnut | Castanheiro-da-índia |
| Common horsechestnut | Castanheiro-da-índia |
| Common inn stay | Setor terciário |
| common kestrel | peneireiro-vulgar |
| Common Kingfisher | Guarda-rios-comum |
| common land | logradouro público |
| Common Language Runtime | Common Language Runtime |
| common lavender | lavanda |
| common law | common law |
| common lawrestsct | direito consuetudinário |
| common lawterest | jurisprudência |
| Common Market for Eastern and Southern Africa | Mercado Comum da África Oriental e Austral |
| Common Mudpuppy | Necturus maculosus |
| Common Nighthawk | Bacurau-norte-americano |
| common noun | substantivo |
| Common Object Request Broker Architecture | CORBA |
| Common Octopus | Polvo |
| common people | população |
| common person | plebeu |
| common quail | codorna-comum |
| Common Redshank | Cacongo |
| common redstart | rabirruivo-de-testa-branca |
| Common Ringtail Possum | Pseudocheirus peregrinus |
| Common Sandpiper | Maçarico-das-rochas |
| Common sawfish | Saw |
| common sense | bom senso |
| common share matedom | ação ordinária |
| Common skate | Skade |
| Common Slavic | eslavo comum |
| Common snook | Robalo-branco |
| common stocklog | ações comunse acontecer |
| common tariff policy | política aduaneira comum |
| Common Tern | Andorinha-do-mar-comum |
| Common Treecreeper | Certhiidae |
| Common Waxbill | Bico-de-lacre-comum |
| Common wood pigeon | Pombo-torcaz |
| Common year starting on Thursday | Ano vulgar que começa numa Quinta-feira |
| common-law marriage | concubinato |
| Common-pool resource | Recurso comum |
| common-sense realismshment | realismo de senso comum |
| commonalty | população |
| commoner | plebeu |
| commonly | normalmente |
| commonplace | banal |
| commonplaceflame | lugar-comumdo |
| commonplaceitution | trivialidade |
| commonplaceon | trivial |
| commons | população |
| Commonwealth | Liga das Nações Britânicas |
| Commonwealth Games | Jogos da Commonwealth |
| Commonwealth of Australia | Austrália |
| Commonwealth of Dominica | Domínica |
| Commonwealth of England | Commonwealth of England |
| Commonwealth of Independent States | Comunidade de Estados Independentes |
| Commonwealth of Nations | Commonwealth |
| Commonwealth of the Bahamas | Bahamas |
| commotion | agitação |
| Commugny | Commugny |
| communal | comum |
