Explanation
Means 'as a turning point', 'since (time)', or 'from (time) on'.
Formation
Noun + を境に(して)
Detailed explanation
The grammar point 'Noun を境にして' is used to indicate a significant change or turning point marked by a specific event or time. It means that after this boundary, some situation changes or a new state begins.
Examples
Chichi no shi wo sakai ni shite, kare no seikaku ga ippen shita.
His personality changed completely since his father's death.
Shiken wo sakai ni shite, kyuka wo toru yotei desu.
I plan to take a vacation after the exam.
Haru wo sakai ni shite, atarashii seikatsu o hajimeru tsumori da.
I intend to start a new life from spring onwards.
Kanojo wa nyuugaku wo sakai ni shite, fasshon ni kyoumi o mochi hajimeta.
She began to take an interest in fashion from the time she entered school.
Practice
Grammar content sourced from hanabira.org.