Ninjawords

°One-twentieth of a ream of paper; a collection of twenty-four or twenty-five sheets of paper of the same size and quality, unfolded or having a single fold.

°(bookbinding) A set of leaves which are stitched together, originally a set of four pieces of paper (eight leaves, sixteen pages). This is most often a single signature (ie group of four), but may be several nested signatures.

°(bookbinding) To prepare quires by stitching together leaves of paper.

°To sing in concert.