an implement used for cutting and neatening something

a hedge trimmer

a person who adapts their views to the prevailing political trends for personal advancement

he is a clever trimmer, a closet federalist unchanged at heart

a person who decorates something

window trimmers

a crosspiece fixed between full-length joists (and often across the end of truncated joists) to form part of the frame of an opening in a floor or roof

trimmer joists

a person responsible for trimming the sails of a yacht

the spinnaker trimmer

a small capacitor or other component used to tune a circuit such as a radio set

trimmer capacitors

an excellent or outstanding person or thing

you little trimmer—it'll suit me down to the ground

neat and smart in appearance; in good order

his face was freshly shaved, his clothes neat and trim

a trim little villa

make (something) neat or of the required size or form by cutting away irregular or unwanted parts

trim the grass using a sharp mower

decorate (something), typically with contrasting items or pieces of material

a pair of black leather gloves trimmed with fake fur

adjust (a sail) to take advantage of the wind

her jobs include trimming the spinnaker and dealing with the yacht's plumbing

get the better of (someone), typically by cheating them out of money

rebuke (someone) angrily