prefix
two before; before last; two in front
Prefix used with time or sequence nouns to mean 'two before' or 'the one before last'. Also used for spatial rows meaning 'two in front'. Common in words like 前々回 (the time before last) and 前々日 (two days before).
前々回の会議で決まったことです。
It was decided at the meeting before last.
前々日にも同じ注意をしました。
I gave the same warning two days before.
前々の席に座っている人は誰ですか。
Who is the person sitting two rows in front?
Means 'last time' or 'the previous one', while 前々 refers to the one before that.
Means 'the day before', while 前々日 means 'two days before'.
Reduplication of 前 (before) to indicate 'two steps before'.