主おもに

お

も

に

Common wordJLPTN3Freq.FrequencyTop 50,000

Meanings

Indicates the main part or most important aspect of something; used to describe what something is largely about or composed of.

〈物もの〉は主おもに〈用よう途と〉に使つかわれるX is mainly used for Y
このアプリは主おもに子こ供どもの教きょう育いくに使つかわれている。
This app is mainly used for children's education.
主おもに〈場ば所しょ〉で活かつ動どうするto be active mainly in a place
彼かれは主おもに日本にほんで活かつ動どうしている歌か手しゅだ。
He is a singer who is mainly active in Japan.
主おもに〈人ひと〉を対たい象しょうにするto be aimed mainly at a certain group of people
このイベントは主おもに大だい学がく生せいを対たい象しょうにしている。
This event is aimed mainly at university students.

主しゅとしてN1
主として is a more formal, written equivalent of 主に, both meaning 'mainly, primarily'.
もっぱらN1
もっぱら implies almost exclusive focus on one thing, whereas 主に just marks the largest or most typical part, allowing for other minor parts.
ほとんどN4
ほとんど stresses quantity, meaning 'almost all', while 主に stresses which part or aspect is most important, not necessarily the majority.
大だい体たいN5
大体 means 'roughly, approximately' and is used for rough estimates, while 主に points specifically to the main component or focus.
多おおくN1
主に is the clearer word for 'mainly/chiefly' focusing on the main point, while 多く in its adverbial sense means 'mostly/often' in terms of frequency or proportion.

主おもにUsage85%
Standard kanji spelling; high priority.
おもにUsage15%
Kana spelling is common in informal writing and when the kanji is not needed.

Derived from the adjective 主 (おも, 'main, principal') with the adverbial particle に.