一いっ昨さくTop 20000MeaningsNoun1. one previousKanji used一one昨previousPitch accentいっさくUsed in vocabulary一いっ昨さく年ねんyear before lastNoun一いっ昨さく晩ばんnight before lastNoun一いっ昨さく夜やnight before lastNoun一いっ昨さく昨さく日じつtwo days before yesterday; three days back (ago)Noun一いっ昨さく々さく夜やtwo nights before lastNoun一いっ昨さく昨さくthree (days, years, etc.) ago; two ... before lastPrefix