「去年」 means last year, referring to the year immediately before the current one. This term is used to talk about events or activities that happened in the previous year. Useful for reflecting on the past.

今(いま)の年(とし)の一個(ひとつ)前(まえ)の年(とし)を意味(いみ)します。去年(きょねん)の出来事(できごと)や活動(かつどう)を話(はな)すときに使(つか)います。