trimmer (Adjective) — Thin and fit. ex. "a body kept trim by exercise"
trimmer (Adjective) — Of places; characterized by order and neatness; free from disorder. ex. "a trim little sailing boat"
trimmer (Adjective) — Neat and smart in appearance. ex. "a trim beard"
trimmer (Adjective) — Severely simple in line or design.
trimmer (Noun) — A worker who thins out and trims trees and shrubs. ex. "untouched by the trimmer's axe"
trimmer (Noun) — A machine that trims timber.
trimmer (Noun) — Capacitor having variable capacitance; used for making fine adjustments.
trimmer (Noun) — Joist that receives the end of a header in floor or roof framing in order to leave an opening for a staircase or chimney etc..