Yes, breed is playable
...and is worth 9 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Breed" Definition
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.
A kind; a sort: a new breed of politician; a new breed of computer.
Offensive A person of mixed racial descent; a half-breed.
A group of usually domesticated animals or plants presumably related by descent from common ancestors and visibly similar in most characters.
A number of persons of the same stock.
idiom
A scab Regional To stir up trouble for oneself.
Breed up a storm New England To become cloudy.
verb-transitive
To be the place of origin of: Austria breeds great skiers.
To bring about; engender: "Admission of guilt tends to breed public sympathy” ( Jonathan Alter).
To cause to reproduce, especially by controlled mating and selection: breed cattle.
To develop new or improved strains in (organisms), chiefly through controlled mating and selection of offspring for desirable traits.
To inseminate or impregnate; mate with.
verb-intransitive
To originate and develop: Mischief breeds in bored minds.
verb
To produce (offspring) by hatching or gestation.
To propagate (plants or animals) sexually and usually under controlled conditions .
To inculcate by training .
To produce (a fissionable element) by bombarding a nonfissionable element with neutrons from a radioactive element.
We love the game of Scrabble®, which is why we created Free Scrabble Dictionary - a simple lookup tool to check if the word you want to play is valid in the game of Scrabble®. At the top of every page, you can enter your word and click "Search Dictionary." We'll let you know whether your word is playable and provide a few definitions as well.