Yes, subject is playable
...and is worth 23 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Subject" Definition
noun
A basis for action; a cause.
A corpse intended for anatomical study and dissection.
A course or area of study: Math is her best subject.
A person or animal that is the object of medical or scientific study: The experiment involved 12 subjects.
Grammar The noun, noun phrase, or pronoun in a sentence or clause that denotes the doer of the action or what is described by the predicate.
verb
To bring under control or dominion .
To make (as oneself) amenable to the discipline and control of a superior.
To cause or force to undergo or endure (something unpleasant, inconvenient, or trying) .
adjective
Being in a position or in circumstances that place one under the power or authority of another or others: subject to the law.
Contingent or dependent: a vacation subject to changing weather.
Likely to incur or receive; exposed: a directive subject to misinterpretation.
Prone; disposed: a child who is subject to colds.
Owing obedience or allegiance to the power or dominion of another.
verb-transitive
To cause to experience: subjected to extreme weather.
To expose to something: patients subjected to infection.
To submit for consideration.
To submit to the authority of.
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