Yes, stream 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)
"Stream" Definition
noun
A flow of water in a channel or bed, as a brook, rivulet, or small river.
A steady current in such a flow of water.
A steady current of a fluid.
A steady flow or succession: a stream of insults. See Synonyms at flow.
verb-transitive
Computer Science To transmit (data) in real time, especially over the Internet.
To emit, discharge, or exude (a body fluid, for example).
idiom
On stream In or into operation or production: a new power plant soon to go on stream.
verb-intransitive
To come or go in large numbers; pour: Traffic was streaming by. Fan mail streamed in.
To extend, wave, or float outward: The banner streamed in the breeze.
To flow in or as if in a stream.
To give forth a continuous stream of light rays or beams; shine.
To leave a continuous trail of light.
verb
To flow in or as if in a stream.
To leave a bright trail .
To exude a bodily fluid profusely .
To become wet with a discharge of bodily fluid .
To trail out at full length .
We love the game of Scrabble®, which is why we created Free Scrabble Dictionary - a simple lookup tool to check if the word you want to play is valid in the game of Scrabble®. At the top of every page, you can enter your word and click "Search Dictionary." We'll let you know whether your word is playable and provide a few definitions as well.