A needle without an eye (usually) made of drawn-out steel wire with one end sharpened and the other flattened or rounded into a head, used for fastening. / A small nail with a head and a sharp point.

(often followed by a preposition such as "to" or "on") To fasten or attach (something) with a pin. / (chess, usually passive) To cause (a piece) to be in a pin. / (wrestling) To pin down (someone).

Alternative form of peen

Acronym of personal identification number.

(organic chemistry) Initialism of preferred IUPAC name.

plural of pin

Third-person singular simple present indicative form of pin

plural of PIN

(transitive) To place the blame for (something) on (someone), especially unjustly.

simple past tense and past participle of pin