Vocabulary What does 半年 (はんとし) mean? 半年 (はんとし) means half a year. Quick factsReadingはんとしPart of speechnoun, adverbLevel (estimated, JLPT framework)N4 半年はんとしN4 · estimated, JLPT frameworkCommonhalf a year1noun · adverb half a year; six monthsKanji in this word半half年year (unit of time)