breed

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To produce (offspring); give birth to or hatch.
• intransitive verb To bring about; engender.
• intransitive verb To cause to reproduce, especially by controlled mating and selection.
• intransitive verb To develop new or improved strains in (organisms), chiefly through controlled mating and selection of offspring for desirable traits.
• intransitive verb To inseminate or impregnate; mate with.
• intransitive verb To rear or train; bring up.
• intransitive verb To be the place of origin of.
• intransitive verb To produce (fissionable material) in a breeder reactor.
• intransitive verb To produce offspring.
• intransitive verb To copulate; mate.
• intransitive verb To originate and develop.
• noun A group of organisms having common ancestors and certain distinguishable characteristics, especially a group within a species developed by artificial selection and maintained by controlled propagation.
• noun A kind; a sort.
• noun Offensive A person of mixed racial descent; a half-breed.
• idiom (a scab/scabs) To stir up trouble for oneself.
• idiom (breed up a storm) To become cloudy.

from The Century Dictionary.

• noun A race or progeny from the same parents or stock; especially, a race of men or other animals having an alliance by nativity and some distinctive qualities in common, which are transmitted by heredity; hence, family; extraction: as, a breed of men in a particular country; horses or sheep of good breed.
• noun Hence Sort; kind: in a general sense.
• noun A number produced at once; a hatch; a brood: as,“above an hundred at a breed,”
• noun Increase of any sort, especially interest on money; usury.
• noun Breeding.
• To procreate; beget; engender; hatch.
• To produce within or upon the body by development or organic process.
• To cause; occasion; produce; originate.
• To produce; be the native place of: as, a pond breeds fish; a northern country breeds a race of stout men.
• To bring up; nurse and foster; take care of during the period of growth: as, born and bred.
• To form by education; train: as, to breed a son to an occupation; a man bred at a university: commonly with up.
• To procure by the mating of parents, and rear for use: as, to breed canaries; to breed cattle for the market.
• Synonyms To generate.
• To nourish, nurture.
• To educate, school, discipline.
• To raise.
• To beget or bear offspring; produce young; be fruitful: used figuratively of increase generally.
• To have birth; be produced; arise; grow; develop: as, maggots breed readily in carrion.
• To procure the birth of young: with from: as, to breed from a mare of good stock.
• To be pregnant.

from the GNU version of the Collaborative International Dictionary of English.

• intransitive verb To bear and nourish young; to reproduce or multiply itself; to be pregnant.
• intransitive verb To be formed in the parent or dam; to be generated, or to grow, as young before birth.
• intransitive verb To have birth; to be produced or multiplied.
• intransitive verb To raise a breed; to get progeny.
• intransitive verb to breed from animals of the same stock that are closely related.
• noun A race or variety of men or other animals (or of plants), perpetuating its special or distinctive characteristics by inheritance.
• noun Class; sort; kind; -- of men, things, or qualities.
• noun obsolete A number produced at once; a brood.
• transitive verb To produce as offspring; to bring forth; to bear; to procreate; to generate; to beget; to hatch.
• transitive verb To take care of in infancy, and through the age of youth; to bring up; to nurse and foster.
• transitive verb To educate; to instruct; to form by education; to train; -- sometimes followed by up.
• transitive verb To engender; to cause; to occasion; to originate; to produce.
• transitive verb To give birth to; to be the native place of.