This is the 65th most frequent Finnish word.
aiemmin
"Earlier" or "previously."
Used as an adverb to indicate an earlier time.
Olen käynyt tässä kahvilassa aiemmin.
I have visited this café earlier.
Used to refer to something mentioned prior in the discussion.
Aiemmin mainitsemasi kirja oli mielenkiintoinen.
The book you mentioned earlier was interesting.
Used to indicate a previous state or action prior to another event.