GMAT Vocabulary Flash Cards @ englishpdf.com and englishteststore.com File 116 collective (adj) Consisting of a number of persons or objects considered as gathered into a mass, or sum collector (n) One who makes a collection, as of objects of art, books, or the like collegian (n) A college student collide (v) To meet and strike violently collier (n) One who works in a coal-mine collision (n) Violent contact colloquial (adj) Pertaining or peculiar to common speech as distinguished from literary colloquialism (n) Form of speech used only or chiefly in conversation