JLPT N2 Grammar: をけいきとして（を契機として）o keiki to shite (o keiki to shite)

をけいきとして（を契機として）o keiki to shite (o keiki to shite)

Meaning: take the opportunity …; as a good opportunity to

How to use the: Noun + を契機として

Explain:
Manifestations of a major change from a certain event

Example sentences:
1, 彼女は大学入学を契機として親元を出た。
Kanojo wa daigaku nyūgaku o keiki to shite oyamoto o deta.
She has left her parents since going to college

2, 彼は就職を契機として生活スタイルをガラリと変えた。
Kare wa shūshoku o keiki to shite seikatsu sutairu o gararito kaeta.
When he got a job, was changed his lifestyle.

3, 日本は敗戦をけいきとして国民主権国家へと転換したと言われている。
Nihon wa haisen o keiki to shite kokumin shuken kokka e to tenkan shita to iwa rete iru.
It is said that since Japan was defeated, it has transferred to a sovereign state that belongs to the people

Attention:
This is the word used in writing, the more formal way of speaking 「～をきっかけに」