Can the word choke be used as noun?

Yes, the Word 'choke' is both a verb and a noun.

The noun choke is a singular, common, concrete noun; a Word for the a device that helps reduce the amount of air going into the engine; the inedible mass of fibers at the center of a globe artichoke.

The noun forms for the verb to choke are choker and the gerund, choking.