What does 大いに mean?
大いに is a Japanese adverb meaning “greatly” or “a lot” in English. It is written as 大いに in kanji, おおいに in hiragana, and ooini in romaji. This word is part of JLPT N3 vocabulary.
Example sentences
今夜は大いに楽しみましょう。
Let's really enjoy ourselves tonight.
その経験は大いに役に立った。
That experience helped me greatly.