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