Japanese · Adjectives
ookii
Big / Large
An i-adjective describing something of great size. The kanji form 大 (dai/oo) is widely used in compounds such as 大学 (daigaku, university).
あの山はとても大きいです。
That mountain is very big.
'大きい' (ookii) comes from '大' (dai, meaning 'big') and has been used in various forms throughout the history of the Japanese language to describe size.
'大きい' is commonly used in everyday language, both formal and informal, to describe size in both spoken and written contexts.