主・重|おもomo[1]atamadaka (head-high)
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Which spelling to use
主主 is the more common written form and the recommended default for beginners. Use it when writing this word.
重重 is a less common written variant of 主. It may appear as an alternative spelling, but beginners should use 主 instead.
Definitions
- na-adjective, nounchief; main; principal; important
- na-adjective, nounmain secondary or supporting role (in kyogen)usu. written as オモ
Conjugation
| Plain form | 主（おも） |
|---|---|
| Polite (desu) | 主です（おもです） |
| Negative (dewa nai) | 主ではない（おもではない） |
| polite (dewa arimasen) | 主ではありません（おもではありません） |
| Past (datta) | 主だった（おもだった） |
| Past negative (dewa nakatta) | 主ではなかった（おもではなかった） |
| Te form (de) | 主で（おもで） |
| Adverbial (ni) | 主に（おもに） |
| Conditional (nara) | 主なら（おもなら） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Synonyms & antonyms
- Related支配的しはいてきWrittenWritten/formal word for something dominant or ruling, as in 「支配的な意見」. 「主（おも）」 just marks something as the main or primary one, without any sense of holding sway.
- Related優勢ゆうせいWrittenA noun for having the upper hand or the advantage, as in 「優勢に立つ」; it is about the balance of power between sides. Written/formal in tone.
Use 「主（おも）」 for something main or primary, as in 「主な原因」 or 「主に」. For something dominant or ruling choose 「支配的」, and for a side holding the upper hand choose 「優勢」; both lean written/formal.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
English equivalents
See also
