Yes, wait 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)
"Wait" Definition
noun
Chiefly British One of a group of musicians employed, usually by a city, to play in parades or public ceremonies.
Chiefly British One of a group of musicians or carolers who perform in the streets at Christmastime.
The act of waiting or the time spent waiting.
A hidden or concealed position.
A state or attitude of watchfulness and expectancy.
verb-transitive
Informal To delay (a meal or an event); postpone: They waited lunch for us.
To be a waiter or waitress at: wait tables.
phrasal-verb
On To follow as a result; depend on.
On To make a formal call on; visit.
On To serve the needs of; be in attendance on.
Wait out To delay until the termination of: wait out a war; waited out the miniskirt craze.
Wait up To postpone going to bed in anticipation of something or someone.
verb-intransitive
To remain or be in readiness: lunch waiting on the table.
To remain or rest in expectation: waiting for the guests to arrive. See Synonyms at stay1.
To remain temporarily neglected, unattended to, or postponed: The trip will have to wait.
To tarry until another catches up.
To work as a waiter or waitress.
verb
To stay in place in expectation of.
To delay serving (a meal).
To remain stationary in readiness or expectation.
To pause for another to catch up.
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