What does "quire" mean?

Quire: See Choir. [Obs.] Spenser. A quire of such enticing birds. Shak.

Additional senses

  1. 2.To sing in concert. [R.] Shak.
  2. 3.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.

Sources