Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
conjointly is an adverb meaning "in conjunction with; combined". It carries one recorded sense.
in conjunction with; combined
“our salaries put together couldn't pay for the damage”
“we couldn't pay for the damages with all our salaries put together”
Definitions, synonyms and semantic relations for conjointly come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.