Is “Esky” a Scrabble word?
Yes
ESKY
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 Esky
/ɛsˈkiː/
noun
1.An insulated picnic cooler, using ice or refrigerated blocks to keep food and drinks cool.
Synonyms: car fridge, chilly bin, cool box, cooler, icebox