Activities aimed at finding a marriage partner (e.g. matchmaking, dating, engagement efforts). A somewhat formal term used in writing as well as speech.
彼は仕事が落ち着いたので本格的に結婚活動を始めた。
Now that his work has settled down, he has started serious marriage-hunting.
結婚活動の一環として、市の出会い支援イベントに申し込んだ。
As part of his marriage-search activities, he signed up for the city's matchmaking support event.
結婚活動について専門のカウンセラーに相談する人も増えている。
More people are consulting specialist counselors about marriage-hunting.