Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
go-ahead is a noun meaning "a signal to proceed". It carries 2 recorded senses.
a signal to proceed
readiness to embark on bold new ventures
Definitions, synonyms and semantic relations for go-ahead come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.