Yes, mean is playable
...and is worth 8 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Mean" Definition
noun
A method, a course of action, or an instrument by which an act can be accomplished or an end achieved.
Great wealth: a woman of means.
Logic The middle term in a syllogism.
Mathematics A number that typifies a set of numbers, such as a geometric mean or an arithmetic mean.
Mathematics The average value of a set of numbers.
idiom
By all means Without fail; certainly.
By any means In any way possible; to any extent: not by any means an easy opponent.
By means of With the use of; owing to: They succeeded by means of patience and sacrifice.
By no means In no sense; certainly not: This remark by no means should be taken lightly.
Mean business Informal To be in earnest.
adjective
Common or poor in appearance; shabby: "The rowhouses had been darkened by the rain and looked meaner and grimmer than ever” ( Anne Tyler).
Cruel, spiteful, or malicious.
Extremely unpleasant or disagreeable: The meanest storm in years.
Ignoble; base: a mean motive.
verb-transitive
To act as a symbol of; signify or represent: In this poem, the budding flower means youth.
To design, intend, or destine for a certain purpose or end: a building that was meant for storage; a student who was meant to be a scientist.
To have as a consequence; bring about: Friction means heat.
To have as a purpose or an intention; intend: I meant to go running this morning, but I overslept.
To have the importance or value of: The opinions of the critics meant nothing to him. She meant so much to me.
verb-intransitive
To have intentions of a specified kind; be disposed: They mean well but lack tact.
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