A rift or cleft.

A department of Nicaragua

A surname.

A competitor (person, team, company, etc.) with the same goal as another, or striving to attain the same thing. Defeating a rival may be a primary or necessary goal of a competitor.

Having the same pretensions or claims; standing in competition for superiority.

(transitive) To oppose or compete with. / To be equal to, or match, or to surpass another. / To strive to equal or excel; to emulate.

An ongoing relationship between (usually two) rivals who compete for superiority.

(US) simple past tense and past participle of rival

(British spelling) simple past tense and past participle of rival

plural of rival