needle

(noun) the leaf of a conifer. Synonyms: acerate leaf.

(noun) a slender pointer for indicating the reading on the scale of a measuring instrument.

(noun) a sharp pointed implement (usually steel).

(noun) a stylus that formerly made sound by following a groove in a phonograph record. Synonyms: phonograph needle.

(verb) goad or provoke,as by constant criticism. Synonyms: goad. Example: "He needled her with his sarcastic remarks."

(verb) prick with a needle.