What does 年間 mean?
年間 is a Japanese noun meaning “year” in English. It can also be translated as “during the era (of)” depending on context. It is written as 年間 in kanji, ねんかん in hiragana, and nenkan in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
私はここで１０年間働いている。
I've worked here for ten years.