Used other than figuratively or idiomatically: A needle used for darning. / A damselfly, or a dragonfly that resembles one.

A type of valve having a small orifice and a needle-like plunger, allowing precise regulation of generally small flow rates.

The small gap in a needle, with just enough space for a thread to pass through.

Very sharp; as sharp as a needle / (of a sound) very high-pitched.

Alternative spelling of needle in a haystack

(idiomatic) Feeling sharp anticipation or anxiety; in a state of suspense.

An adult leaf of an adult pine tree.

(historical) The limit on the amount of airplay of recorded music in any given 24-hour period.

Venus' comb (Scandix pecten-veneris) / Beggarticks (Bidens spp.)

A magnetized pointer (usually marked on the North end) within a compass, free to align itself with the Earth's magnetic field.