colonist Get Printable Handwriting (col-o-nist) 3 syllables Learn It! Spelling Test Definition noun. a person who lives in or is a member of a colony; an inhabitant of the 13 British colonies that became the United States of America. Example Sentence The colonist looked forward to seeing her new home. Synonyms member of a colony; original inhabitant of US; joiner Antonyms loner Share with your friends: