Syllable division and stress derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
plank-bed is a noun meaning "a bed of boards (without a mattress)". It carries one recorded sense.
a bed of boards (without a mattress)
Definitions, synonyms and semantic relations for plank-bed come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.