Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
re-experiencing is a noun meaning "a recurrence of a prior experience". It carries one recorded sense.
a recurrence of a prior experience
“the reliving of a strong emotion can be therapeutic”
Definitions, synonyms and semantic relations for re-experiencing come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.