Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
frost-bound is an adjective meaning "(of the ground) made hard by frost". It carries one recorded sense.
(of the ground) made hard by frost
Definitions, synonyms and semantic relations for frost-bound come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.