Yes, build is playable
...and is worth 11 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Build" Definition
noun
Computer Science Any of various versions of a software product as it is being developed for release to users.
The physical makeup of a person or thing; physique: an athletic build.
Form or mode of structure .
Bodily conformation of a person or animal.
idiom
Build on sand To provide with an unstable foundation: Having bought only high-risk stocks, my portfolio was built on sand.
phrasal-verb
Build up To accumulate or collect: sediment building up on the ocean floor.
Build up To bolster: build up the product with a massive ad campaign; built up my hopes after the interview.
Build up To develop or increase in stages or by degrees: built up the business; building up my endurance for the marathon.
Build up To fill up (an area) with buildings.
In To construct or include as an integral part of: a wall with shelving that was built in; build stability into the economy.
verb-intransitive
To develop in magnitude or extent: clouds building on the horizon.
To engage in the construction or design of buildings: "Each of the three architects built in a different style” ( Dwight Macdonald).
To make something by combining materials or parts.
To progress toward a maximum, as of intensity: suspense building from the opening scene to the climax.
verb-transitive
To develop or give form to according to a plan or process; create: build a nation; built a successful business out of their corner grocery store.
To establish a basis for; found or ground: build an argument on fact.
To form by combining materials or parts; construct.
To increase or strengthen by adding gradually to: money building interest in a savings account; build support for a political candidate.
To order, finance, or supervise the construction of: The administration built several new housing projects.
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