commencement

英 [kəˈmensmənt]

美 [kəˈmensmənt]

n. 开始; 开端; 学位授予典礼; 毕业典礼

BNC.12251 / COCA.13566

牛津词典

noun

开始；开端
beginning
1. the commencement of the financial year
  财政年度的开始
学位授予典礼；毕业典礼
a ceremony at which students receive their academic degrees or diplomas

N-UNCOUNT 开始
Thecommencementof something is its beginning.
1. All applicants should be at least 16 years of age at the commencement of this course.
  申请修读这门课程者至少要年满16岁。
学位授予仪式;(大学或高中的)毕业典礼
Commencementis a ceremony at a university, college, or high school at which students formally receive their degrees or diplomas.

in BRIT, use 英国英语用 graduation

noun

the act of starting something
1. he was responsible for the beginning of negotiations
Synonym:beginningstart
an academic exercise in which diplomas are conferred
Synonym:commencement exercisecommencement ceremonygraduationgraduation exercise
the time at which something is supposed to begin
1. they got an early start
2. she knew from the get-go that he was the man for her
Synonym:beginningfirstoutsetget-gostartkickoffstarting timeshowtimeoffset

In a way, this is also a commencement year for me.
某种程度上，今年也是我的毕业年。
E.g.He made a speech at the commencement.
他在毕业典礼上做了一次演讲。
I will receive my diploma at commencement.
毕业典礼时我会接到毕业证书。
Period of insurance and the commencement of the insurance liability;
保险期间和保险责任开始时间；
With the commencement of our school, I started my study in grade three.
开学了，我从三年级开始读。
I feel as if commencement address will never end.
我觉得毕业典礼的致辞好像永远不会结束似的。
So on this commencement day, I speak to you as a parent.
因此，在你们的毕业典礼上，我以一个家长的身份跟你们说这番话。
Would passengers please put out cigarettes before the commencement of the flight.
请乘客们在飞机起飞前熄灭香烟。
He was invited to speak at the commencement.
他受邀在毕业典礼上讲话。
So I listened to lots of commencement speeches online.
所以，我开始在网上听大量的演讲来汲取灵感。