trimmer

One who trims, arranges, fits, or ornaments.

A device used to trim.

(nautical) A member of the crew who trims the sails.

Someone who fluctuates between opposing factions, political parties etc., according to current interest, a flip-flopper.

(architecture) A beam into which are framed the ends of headers in floor framing, as when a hole is to be left for stairs, or to avoid bringing joists near chimneys.

(mining, historical) A person employed to rearrange the coal in the hold of a vessel, so that it fills the vessel without forming a conical blockage.

(mining, historical) A device for storing coal in gradually increasing piles made by building up at the point of the cone or top of the prism.

(fishing) A float bearing a baited hook and line, used in fishing for pike.

(dated) One who or that which trims, or rebukes or reproves; a scold.