plural of Tribble

A musical composition with lyrics for voice or voices, performed by singing. / (by extension) Any musical composition. / Poetical composition; poetry; verse. / The act or art of singing.

A being that opposes, or typifies the opposite of, the human race.

(US, education) An informational event in the evening where students' guardians meet their students' teachers and are introduced to the routine, curriculum, policy, etc.