Yes, fire 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)
"Fire" Definition
noun
A fever or bodily inflammation.
A rapid, persistent chemical change that releases heat and light and is accompanied by flame, especially the exothermic oxidation of a combustible substance.
A severe test; a trial or torment.
Burning fuel or other material: a cooking fire; a forest fire.
Burning intensity of feeling; ardor. See Synonyms at passion.
idiom
Between two fires Being attacked from two sources or sides simultaneously.
On fire Filled with enthusiasm or excitement.
Start Slang To urge or goad to action.
Under fire Exposed or subjected to critical attack or censure: an official who was under fire for mismanagement.
phrasal-verb
Fire away Informal To start to talk or ask questions.
Fire off To utter or ask rapidly.
Fire off To write and send (a letter, for example) in haste.
verb-transitive
Games To score (a number) in a game or contest.
Informal To throw with force and speed; hurl: fire a ball at a batter.
To add fuel to (something burning).
To arouse the emotions of; make enthusiastic or ardent. Often used with up: warriors who were fired by patriotism.
To bake in a kiln: fire pottery.
verb-intransitive
Informal To project or hurl a missile: The pitcher wound up and fired.
Physiology To generate an electrical impulse. Used of a neuron.
To become angry or annoyed.
To become excited or ardent.
To become ignited; flame up.
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