Meaning and Usage
"一昨年" (いっさくねん) means "the year before last," referring to two years ago from the current year. It is a common time expression used in both spoken and written Japanese to specify a point in the recent past.
Common Contexts
You will often hear or see "一昨年" when talking about past events, trips, changes in life, or historical timelines within a few years. It is more formal than casual expressions like "2年前" (two years ago) and is frequently used in news, reports, and formal conversations.
Collocations and Patterns
- 一昨年 + noun (e.g., 一昨年の夏): specifying a season or event in the year before last.
- 一昨年から + verb (e.g., 一昨年から働いている): indicating the starting point of an action or state from the year before last.
- 一昨年も + verb (e.g., 一昨年も旅行した): expressing that something also happened the year before last.
Nuances and Tips
Using "一昨年" implies a clear reference to a specific year two years ago, which helps avoid ambiguity compared to just saying "two years ago." It is polite and neutral in tone, suitable for formal and informal contexts. Learners sometimes confuse "一昨年" with "去年" (last year) or "去年の一昨年" (incorrect), so remember it always means two years ago exactly.