一昨年

What it means

What does 一昨年 mean? It means the year before last. It denotes the calendar year two years prior to the current year, used to refer to past timelines in both formal and casual contexts.

Main meanings

• the year two years prior to the current year
• the year before last in a timeline or historical reference

How to use it

Used in both formal and everyday Japanese when referring to a time two years prior; common in timelines, reports, storytelling, and when comparing past events. Examples: 一昨年のデータを参照する; 一昨年に起きた出来事を振り返る.