Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
open-plan is an adjective meaning "(of rooms or buildings) having large rooms with few dividing partitions". It carries one recorded sense.
(of rooms or buildings) having large rooms with few dividing partitions
Definitions, synonyms and semantic relations for open-plan come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.