Yes, can 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)
"Can" Definition
noun
A usually cylindrical metal container.
An airtight container, usually made of tin-coated iron, in which foods or beverages are preserved.
Slang A toilet or restroom.
idiom
Can of worms A complex or difficult problem.
In the can Completed and ready for release, as a film or scene of a film.
verb-transitive
Slang To dismiss from employment or school. See Synonyms at dismiss.
To seal in an airtight container for future use; preserve: canning peaches.
auxiliary-verb
Usage Problem Used to request or grant permission: Can I be excused?.
Used to indicate physical or mental ability: I can carry both suitcases. Can you remember the war?.
Used to indicate possession of a specified capability or skill: I can tune the harpsichord as well as play it.
Used to indicate possession of a specified power, right, or privilege: The President can veto congressional bills.
Used to indicate possibility or probability: I wonder if my long lost neighbor can still be alive. Such things can and do happen.
verb
To be able to do, make, or accomplish.
To have knowledge or skill.
Be physically or mentally able to.
Be permitted by conscience or feeling to.
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