IPA: /ˈiːstərnmoʊst/
KK: /ˈiːstərnmoʊst/
The furthest point or location to the east.
The easternmost city in the country is known for its beautiful beaches.
Easternmost → It is formed from "east" (from Old English *ēast*, meaning the direction of the sunrise) and "-ernmost" (a superlative suffix meaning furthest or most). The word "easternmost" means the furthest point in the direction of the east.
Think of the direction of the sunrise ('east') and remember that 'easternmost' refers to the furthest point in that direction.