Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
run-time is a noun meaning "the time at which a (software or multimedia) program is run". It carries 2 recorded senses.
Definitions, synonyms and semantic relations for run-time come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.