Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
self-starter is a noun meaning "an energetic person with unusual initiative". It carries 2 recorded senses.
an energetic person with unusual initiative
an electric starting motor that automatically starts an internal-combustion engine
Definitions, synonyms and semantic relations for self-starter come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.