Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
second-year is an adjective meaning "used of the second year in United States high school or college". It carries one recorded sense.
used of the second year in United States high school or college
“the sophomore class”
“his sophomore year”
Definitions, synonyms and semantic relations for second-year come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.