Is “Best” a Scrabble word?
Yes
BEST
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Best
/ˈbɛst/
noun
1.The supreme effort one can make, or has made.
“I did my best.”
2.One's best behavior.
“I was somewhat distant lately, and my lady promised me head every Tuesday of the week when I'm nice to her, so I better be on my best.”
3.The person (or persons; or thing or things) that is (are) most excellent.
verb
1.To surpass in skill or achievement.
2.To beat in a contest
adjective
1.Most; largest.
“Unpacking took the best part of a week.”
2.Most superior; most favorable.
“In my opinion, mushrooms are the best pizza toppings.”
adjective
1.(of people)
2.(of capabilities)
3.(properties and qualities)
Synonyms: accomplished, all right, decent, not bad, satisfactory, well