Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
soft-cover is a noun meaning "a book with paper covers". It carries one recorded sense.
a book with paper covers
Definitions, synonyms and semantic relations for soft-cover come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.