Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
weatherworn is an adjective meaning "worn by exposure to the weather". It carries one recorded sense.
worn by exposure to the weather
“a house of weathered shingles”
Definitions, synonyms and semantic relations for weatherworn come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.