Yes, direct is playable
...and is worth 10 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Direct" Definition
adjective
Being of unbroken descent; lineal: a direct descendant of the monarch.
Consisting of the exact words of the writer or speaker: a direct quotation; direct speech.
Effected by action of the voters, rather than through elected representatives or delegates: direct elections.
Having no intervening persons, conditions, or agencies; immediate: direct contact; direct sunlight.
Lacking compromising or mitigating elements; absolute: direct opposites.
adverb
From point to point without deviation by the shortest way .
From the source without interruption or diversion .
Without an intervening agency or step .
verb-transitive
To address or adapt (remarks, for example) to a specific person, audience, or purpose.
To cause to move in or follow a straight course: directed their fire at the target.
To cause to move toward a goal; aim. See Synonyms at aim.
To give authoritative instructions to: directed the student to answer.
To give guidance and instruction to (actors or musicians, for example) in the rehearsal and performance of a work.
verb-intransitive
To conduct a performance or rehearsal.
To give commands or directions.
verb
To write (a letter) to a person.
To mark with the name and address of the intended recipient.
To adapt in expression so as to have particular applicability .
To regulate the activities or course of.
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