noun A very fine slender piece of metal with a point at one end and a hole or eye for thread at the other, used in sewing. (a darning needle) The pointed hollow end of a hypodermic syringe. (He paid a $200 fine for possession of hypodermic syringes, needles, and other paraphernalia.) A thin pointer on a dial, compass, or other instrument. (the meter needle barely moved) A stylus used to play phonograph records. (When the friend forgot to bring him his needles for the record player Chad attempted to re-enter the club.) The sharp, stiff, slender leaf of a fir or pine tree. (The conifers are a particularly interesting group to study as unlike cereals their leaves or needles are retained for several years.) A pointed rock or peak. A beam used as a temporary support during underpinning.