オオムカシ
Meanings
Adverb
Noun
1. ancient times; prehistoric times; the distant past; a very long time ago
Pitch accent
オ
オム
カシ
Composed of
large; big; older; senior; final; ultimate
the old days; the past; former times; the past ten years; the past decade
Examples (3 in total)
Dinosaurs became extinct a very long time ago.
That castle was built in ancient times.
In early days pioneers lived in houses made of mud and straw.