Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
quickener is a noun meaning "an agent that gives or restores life or vigor". It carries one recorded sense.
an agent that gives or restores life or vigor
“the soul is the quickener of the body”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for quickener come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.