重なる, かさなる
Godan verb, Intransitive
1. to be piled up, to lie on top of one another
2. to come one after another, to happen over and over, to pile up (e.g. stress), to accumulate
3. to overlap (each other), to occur at the same time, to happen simultaneously
私の誕生日とあなたの誕生日が、偶然重なる。
主なる, 重なる, おもなる
Pre-noun adjectival (rentaishi)
main, principal, important