Breed, v. i.
 1. To bear and nourish young; to reproduce or multiply itself; to be pregnant.
    That they breed abundantly in the earth.   --Gen. viii. 17.
    The mother had never bred before.   --Carpenter.
 Ant. Is your gold and silver ewes and rams?
 Shy. I can not tell. I make it breed as fast.   --Shak.
 2. To be formed in the parent or dam; to be generated, or to grow, as young before birth.
 3. To have birth; to be produced or multiplied.
 Heavens rain grace
 On that which breeds between them.   --Shak.
 4. To raise a breed; to get progeny.
    The kind of animal which you wish to breed from.   --Gardner.
 To breed in and in, to breed from animals of the same stock that are closely related.