needle
Definitions
A small, slender, sharp-pointed implement, usually of polished steel, used for sewing or surgical suturing.
A thin, pointed rod or wire used in knitting or crochet.
A slender, pointed leaf, as of a pine or fir tree.
Examples
She carefully threaded the needle to mend the tear in her favorite sweater.
Finding that lost key in the tall grass was like looking for a needle in a haystack.