What does 昨 mean?
昨 is a Japanese noun meaning “last (year), yesterday” in English. It can also be translated as “to forcibly separate (e.g. two lovers), to spare (time, money, etc.), to have a tattoo in the corner of one's eye” depending on context. It is written as 昨 in kanji, さく in hiragana, and saku in romaji. This word is part of JLPT N3 vocabulary.