Yes, have 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)
"Have" Definition
noun
A person who possesses great material wealth.
One that is well-endowed especially in material wealth.
idiom
Better Usage Problem To be wise or obliged to; should or must: He had better do what he is told. You had best bring a raincoat in this weather.
Have (something) coming To deserve what one receives: You had that reprimand coming for a very long time.
Have done with To stop; cease: Have done with your quibbling!.
Have had it Informal To be in a state beyond remedy, repair, or salvage: That coat has had it.
Have had it Informal To have done everything that is possible or that will be permitted.
phrasal-verb
Have on To be scheduled: We have a dinner party on for Friday.
Have on To wear: had on red shoes.
verb-transitive
Informal To influence by dishonest means; bribe: an incorruptible official who could not be had.
To be in possession of: already had a car.
To be obliged to; must: We simply have to get there on time.
To be subject to the experience of: had a difficult time last winter.
To carry on, perform, or execute: have an argument.
auxiliary-verb
Used with a past participle to form the present perfect, past perfect, and future perfect tenses indicating completed action: The troublemaker has gone for good. I regretted that I had lost my temper. They will have finished by the time we arrive.
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