Guestimate is valid Scrabble Word

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

10 letters word
13 points in Scrabble
16 points in WWF

Definitions for GUESTIMATE in dictionary:

VERB:

to make an intuitive estimate, also GUESSTIMATE
to make an intuitive estimate

NOUN:

an estimate based on a mixture of guesswork and calculation
estimate (something) using a mixture of guesswork and calculation
an estimate that combines reasoning with guessing

Words related to GUESTIMATE

guestimated15 guestimates14 guestimating16

Words that contain GUESTIMATE

guestimated15 guestimates14

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