Yes, hang is playable
...and is worth 9 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Hang" Definition
noun
A downward inclination or slope.
A suspension of motion; a slackening.
Informal The proper method for doing, using, or handling something: finally got the hang of it.
Particular meaning or significance.
The way in which something hangs.
verb-intransitive
Baseball To fail to break or move in the intended way, as a curve ball.
Computer Science To be halted, as a computer system, so that input devices do not function: The power surge caused my computer to hang, so I had to reboot it.
Slang To keep company; see socially. Often used with around or out: hangs around with kids from a different school.
Slang To pass time idly; loiter. Often used with around or out: spent the evening hanging at home; hung out for an hour before going to the play.
To attach oneself as a dependent or an impediment; cling.
verb-transitive
Baseball To throw (a pitch) in such a manner as to fail to break.
Computer Science To cause (a computer system) to halt so that input devices, such as the keyboard or the mouse, do not function.
Informal To give (a nickname or label) to someone.
Informal To make (a turn in a specific direction): At the next intersection, hang a right.
To alter the hem of (a garment) so as to fall evenly at a specified height.
phrasal-verb
Hang back To be averse; hold back.
Hang in Informal To persevere: decided to hang in despite his illness.
Hang off To hold back; be averse.
Hang on To cling tightly to something.
Hang on To continue persistently; persevere.
idiom
Hang fire To be slow in firing, as a gun.
Hang fire To delay: "They are people who hung fire even through the bloody days of the Hungarian Revolution” ( Mark Muro).
Hang in there Informal To persevere despite difficulties; persist: She hung in there despite pressure to resign.
Hang it up Informal To give up; quit.
Hang loose Slang To stay calm or relaxed.