Slipstreaming is valid Scrabble Word

Is slipstreaming a scrabble word?
Official Scrabble Players Dictionary NO
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is slipstreaming valid Words with Friends?
Words with Friends YES

13 letters word
18 points in Scrabble
23 points in WWF

Definitions for SLIPSTREAMING in dictionary:

VERB:

SLIPSTREAM, to drive in the slipstream of a vehicle

NOUN:

the act of updating a software program without adequately informing the public, as by failing to release it as an official new version.

OTHER DEFINITIONS:

a stream of fluid (as air or water) driven aft by a propeller

Words related to SLIPSTREAMING

slipstream14

Similar words containing SLIPSTREAM without suffix ing

slipstream14 slipstreams15 slipstreamed17

Find what other words can be done using letters: "slipstreaming"
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