Yes, man is playable
...and is worth 7 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Man" Definition
noun
A human or an adult male human belonging to a specific occupation, group, nationality, or other category. Often used in combination: a milkman; a congressman; a freeman.
A human regardless of sex or age; a person.
A male human endowed with qualities, such as strength, considered characteristic of manhood.
A male representative, as of a country or company: our man in Tokyo.
A male servant or subordinate.
idiom
As one man In complete agreement; unanimously.
As one man With no exception: They objected as one man.
To a man Without exception: All were lost, to a man.
verb-transitive
To fortify or brace: manned himself for the battle ahead.
To supply with men, as for defense or service: man a ship.
To take stations at, as to defend or operate: manned the guns.
interjection
Used as an expletive to indicate intense feeling: Man! That was close.
Used, irrespective of the sex of the person addressed, to express surprise, admiration, delight, etc., or for emphasis.
verb
To supply with people (as for service) .
To station members of a ship's crew at .
To serve in the force or complement of .
To accustom (as a hawk) to humans and the human environment.
To furnish with strength or powers of resistance .
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