notch
noun [ C ] uk/nɒtʃ/ us/nɑːtʃ/
(CUT)
（硬物表面的）V形槽口，V形切
a V-shaped cut in a hard surface
The stick has two notches, one at each end. 这根木棍两端各有一个V形切口。
(HOLE/MARK)
medical specialized（身体部位边缘的）凹口;切迹
a hole or mark on the edge of a body part
a cardiac notch 心切迹
(POSITION)
等级，档次
an imaginary point or position in a system of comparing values, where a higher position is better and a lower position is worse
Among current players, she is rated a notch above (= is better than) the rest. 在现役运动员中，她比其他人要高出一个等级。
Idiom
a notch on the/someone's bedpostidiom informal某人的一个性伴
someone that a person has sex with, not because they want a serious relationship, but because they want to have sex with as many people as possible
She's not prepared to be just another notch on the bedpost. 她可不想只成为别人的性伴而已。
notch
verb [ T ] uk/nɒtʃ/ us/nɑːtʃ/
在…上切V形槽口，在…上刻V形切口
to cut a notch in something
Phrasal verb
notch something up 险胜，侥幸取胜
to achieve something
She has recently notched up her third win at a major ski event. 最近，她在一项重要的滑雪赛事中获胜，取得了她的第三次胜利。