1.
two years; period of two years
A duration of two years. The 間 suffix emphasizes a continuous span of time, distinguishing this from 二年 which can also mean 'second year.'
二年間頑張った。
I worked hard for two years.
彼は二年間この会社で働いた。
He worked at this company for two years.
修士課程は二年間で、修了には論文の提出が必要だ。
A master's program is two years long, and completion requires submitting a thesis.
Adds the duration suffix 間 to 二年, making the meaning unambiguously 'for two years' rather than 'second year.'
COMMON PATTERNS:
- 二年間の経験: two years of experience
- 二年間続ける: to continue for two years
- 二年間の留学: a two-year study-abroad period
SIMILAR WORDS:
- 二年: two years; second year — shorter form, can be ambiguous between duration and ordinal
- 二年生: second-year student — ordinal, not duration