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.
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.
verb
To fasten to some elevated point without support from below .
To suspend by the neck until dead .
To fasten so as to allow free motion within given limits upon a point of suspension .
To adjust the hem of (a skirt) so as to hang evenly and at a proper height.
To furnish with decorations (as flags or bunting).
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.