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-effacement is a noun meaning "withdrawing into the background; making yourself inconspicuous". It carries one recorded sense.
withdrawing into the background; making yourself inconspicuous
Definitions, synonyms and semantic relations for self-effacement come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.