Yes, mix is playable
...and is worth 13 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Mix" Definition
noun
A blend of diverse elements; an amalgamation: "a mix of mean streets and the grandest boulevards—no other place in Paris is as eclectic and eccentric . . . as the 17th” ( Jean Rafferty).
A mixture, especially of ingredients packaged and sold commercially: a cake mix.
Electronics A recording that is produced by combining and adjusting two or more audio tracks or channels.
An act or process of mixing.
verb-transitive
Electronics To combine (two or more audio tracks or channels) to produce a composite audio recording.
Electronics To produce (a soundtrack or recording) in this manner.
To add (an ingredient or element) to another: mix an egg into batter.
To bring into social contact: mix boys and girls in the classroom.
To combine or blend into one mass or mixture.
phrasal-verb
Mix down Electronics To combine all of the audio components of a recording into a final soundtrack or mix.
Mix up To confuse; confound: His explanation just mixed me up more. I always mix up the twins.
Mix up To involve or implicate: He got himself mixed up with the wrong people.
idiom
Mix it up Slang To fight.
verb-intransitive
To associate socially or get along with others: He does not mix well at parties.
To be capable of being blended together: Oil does not mix with water.
To become involved: In the case of a family argument, a friend should not mix in.
To become mixed or blended together.
To mate so as to produce a hybrid; crossbreed.
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