verb

• (transitive) To reduce slightly; to cut; especially, to remove excess.
  "He trimmed his beard before the interview."
• (transitive) To decorate or adorn; especially of a Christmas tree.
  "They traditionally trim the tree on Christmas Eve."
• (transitive, aviation, of an aircraft) To adjust the positions of control surfaces, sometimes using trim tabs, so as to modify or eliminate the aircraft's tendency to pitch, roll, or yaw when the cockpit controls are released.
• (transitive, nautical, of a vessel) To modify the angle relative to the water by shifting cargo or ballast; to adjust for sailing; to assume, or cause to assume a certain position, or trim, in the water.
  "The captain made us trim the boat, and we got her to lie a little more evenly."

noun

• (uncountable) Decoration; especially, decoration placed along edges or borders.
  "Paint the house white with blue trim."
• (countable) A haircut, especially a moderate one to touch up an existing style.
  "I went to the hairdresser for a trim but came back nearly bald."
• (countable) The manner in which something is equipped or adorned; order; disposition.
  "to be in good trim"
• (countable) The manner in which something is equipped or adorned; order; disposition.
  "Holonyms: make; model"

adv

• (nautical) In good order; properly managed or maintained.
• (nautical) With sails well trimmed.

noun

• (law) Acronym of trade-related investment measure.