needles

From WikiWord, the free dictionary

English

Definitions

A fine, sharp implement usually for piercing such as sewing, or knitting, acupuncture, tattooing, body piercing, medical injections, etc.“The seamstress threaded the needle to sew on a button.”
Any slender, pointed object resembling a needle, such as a pointed crystal, a sharp pinnacle of rock, an obelisk, etc.
A fine measurement indicator on a dial or graph, e.g. a compass needle.“The needle on the fuel gauge pointed to empty.”
A sensor for playing phonograph records, a phonograph stylus.“Ziggy bought some diamond needles for his hi-fi phonograph.”

To pierce with a needle, especially for sewing or acupuncture.
To tease in order to provoke; to poke fun at.“Billy needled his sister incessantly about her pimples.”
To form, or be formed, in the shape of a needle.“to needle crystals”

Not needed; unnecessary.“This new project of yours will only be a needless expense.”