expression, noun
New Year's resolution
A resolution or vow made at the beginning of the new year, often in a formal or personal context.
今年の年頭の誓いは、毎日運動することです。
My New Year's resolution this year is to exercise every day.
社長が年頭の誓いを述べた。
The company president gave a New Year's resolution speech.
Compound of 年頭 (beginning of the year) and 誓い (vow, oath).