1) Amount of paper 2) Company of singers 3) Definite quantity 4) Fraction of a ream 5) French word used in English 6) Gathering 7) One twentieth of a ream 8) Paper amount 9) Paper measure 10) Paper portion 11) Paper purchase 12) Paper quantity 13) Part of a ream 14) Passel of paper 15) Quantity for Richard Hoe Found on https://www.crosswordclues.com/clue/quire
• (n.) See Choir. • (n.) A collection of twenty-four sheets of paper of the same size and quality, unfolded or having a single fold; one twentieth of a ream. • (v. i.) To sing in concert. Found on http://thinkexist.com/dictionary/meaning/quire/
4 sheets of paper folded to form 8 leaves, as often found in medieval manuscripts. Sometimes used to denote a collection of 24 sheets.
Found on http://www.encyclo.co.uk/local/20208
Traditional term for one twentieth of a ream. The traditional ream was 480 sheets, so the quire was 24 sheets. Found on http://www.encyclo.co.uk/local/21179