Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
eastmost is an adjective meaning "farthest to the east". It carries one recorded sense.
farthest to the east
Definitions, synonyms and semantic relations for eastmost come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.