1. Something of unequaled excellence; a peerless thing or person; a nonesuch; -- often used as a name. 2. Etym: [F. nonpareille.] (Print.) A size of type next smaller than minion and next larger than agate (or ruby). Note: This line is printed in the type called nonpareil. 3. (Zoöl.) (a) A beautifully colored finch (Passerina ciris), native of the Southern Unit...