| concorde | agreed |
| concordia | unity |
| concorrente | candidate |
| concorrenti | panel |
| concorrenza | competition |
| concorrenza distorta | distortion of competition |
| concorrenza economica | economic competition |
| concorrenza internazionale | international competitiveness |
| Concorrenza sleale | Unfair business practices |
| Concorrenza tra Airbus e Boeing | Competition between Airbus and Boeing |
| concorrenziale | competitive |
| concorrere | compete |
| concorrere a un appalto per | tender for |
| concorso | concourse |
| concorso di bellezza | beauty pageant |
| Concorso Internazionale Čajkovskij | International Tchaikovsky Competition |
| Concorso Pianistico Internazionale Frédéric Chopin | International Frederick Chopin Piano Competition |
| Concorso pianistico internazionale Géza Anda | Concours Géza Anda |
| Concorso pianistico internazionale Van Cliburn | Van Cliburn International Piano Competition |
| concretare | embody |
| concretarsi | materialize |
| Concrete Mathematics | Concrete Mathematics |
| concretismo | concretism |
| concreto | definite |
