Vow
Oath
noun
This looks like an adjective, but it's actually a noun. This word is the same as the kanji meaning: vow (or oath).
Who did you make a vow to? It's your chica (ちか)! You swore an oath to her, pledging loyalty, support and companionship. Try to picture a chica you would exchange vows with. In fact, it doesn't have to be romantic. Maybe you both just vowed to read more books this year.
結婚の誓いの言葉を述べている時、自分が間違った男の人と結婚しようとしていることは分かっていました。
When I was saying my wedding vows I knew I was marrying the wrong man.