Meaning and Usage
The verb 誓う (ちかう) means "to swear" or "to vow." It is often used when someone makes a serious promise or commitment, especially in emotional or formal contexts such as marriage vows, promises of loyalty, or solemn declarations.
Common Contexts
You will frequently see 誓う used in contexts involving love, truthfulness, or moral commitments. For example, people might 誓う eternal love, to tell the truth, or to never repeat a mistake.
Collocations and Patterns
- 誓う + noun (e.g., 愛を誓う): to vow something important like love or loyalty.
- 〜と誓う: to swear that ~ (used to introduce the content of the vow).
- 二度と〜ないと誓う: to vow never to do something again.
Register and Nuance
誓う is a formal and strong word, often used in serious or solemn situations. It is not typically used for casual promises. When you use 誓う, you imply a deep commitment or a heartfelt promise.
Common Mistakes
Learners sometimes confuse 誓う with 約束する (やくそくする), which means "to promise." 誓う is stronger and more formal, often implying a solemn or emotional vow, whereas 約束する can be used for everyday promises.