Is “Thickest” a Scrabble word?
Yes
THICKEST
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 Thickest
adjective
1.Relatively great in extent from one surface to the opposite in its smallest solid dimension.
2.Measuring a certain number of units in this dimension.
“I want some planks that are two inches thick.”
3.Heavy in build; thickset.
“He had such a thick neck that he had to turn his body to look to the side.”
Synonyms: broad, chummy, close, close-knit, friendly, intimate
adverb
1.In a thick manner.
“Snow lay thick on the ground.”
2.Frequently or numerously.
“The arrows flew thick and fast around us.”