Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
well-off is an adjective meaning "in fortunate circumstances financially; moderately rich". It carries 2 recorded senses.
in fortunate circumstances financially; moderately rich
“they were comfortable or even wealthy by some standards”
“easy living”
“a prosperous family”
“his family is well-situated financially”
“well-to-do members of the community”
Definitions, synonyms and semantic relations for well-off come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.