inconnu

noun, plural in·con·nus [in-kuh–nooz, –nyooz, ing-; French an-kaw-ny] /ˌɪn kəˈnuz, -ˈnyuz, ˌɪŋ-; French ɛ̃ kɔˈnü/, (especially collectively for 2) in·con·nu.

1. a person who is unknown; stranger.
2. Also called sheefish. a game fish, Stenodus leucichthys, of fresh or brackish northern waters.

noun

1. a North American freshwater food and game fish, Stenodus leucichthys, related to the salmon