This is the 1211th most frequent Japanese word.
開設
"Opening" or "establishment" of something, such as a facility, service, or account.
In this sentence, '開設' refers to the act of initiating or establishing a facility, giving a nuance of implementation or commencement.
この施設の開設は地域社会に大きな影響を与えました。
The establishment of this facility had a significant impact on the local community.
Here, '開設' is used to describe the action of setting up or instituting a new branch of the company, indicating managerial involvement in the establishment process.
彼は会社の新しい支店の開設を担当しました。
He was responsible for the opening of the company's new branch.
In this context, '開設' signifies the launch or implementation of the website, emphasizing the commencement of its operation.