開設|かいせつkaisetsu[0]heiban (flat)

1. noun, suru verb, transitive verbestablishment; opening; setting up; inauguration
   ７月がつ１０日にちより札幌さっぽろ支店してんを開設かいせついたします。↗

   On July 10, we will open our Sapporo branch.

• Synonym設立せつりつWrittenFormal: founding of organizations like companies or schools, stressing the organization itself; 「開設」 opens accounts, shops or websites and starts operation.
• Synonym創設そうせつWrittenFormal noun for first creating a system or institution, stressing the pioneering act; 「開設」 stresses a facility beginning operation.
• Synonym設置せっちWrittenFormal: setting up an institution or installing equipment, stressing placement or installation; 「開設」 stresses starting operation.
• Synonym新設しんせつNeutralNeutral: newly adding a department, subject or the like, as in 「学科を新設」; stresses the new addition, while 「開設」 stresses starting operation.
• Related創立そうりつWrittenFormal: founding of schools or companies, stressing the organization's birth, as in 「創立記念日」; not used for accounts or websites.
• Related創始そうしWrittenFormal: pioneering something first, stressing the original founder, as in 「創始者」; 「開設」 simply means opening a new facility.
• Related創業そうぎょうNeutralNeutral: founding a business, with a commercial flavour, as in 「創業者」 or 「創業百年」; 「開設」 is not limited to businesses.
• Related創建そうけんWrittenFormal and rare: creating buildings or organizations, often temples or states, with a historical flavour.
• Related結成けっせいNeutralNeutral: forming a group by people banding together, as in 「新党結成」; the object of 「開設」 is a facility, not a group.
• Related発足ほっそくWrittenFormal: a new organization starting up, stressing the launch, as in 「新体制発足」; 「開設」 takes a facility as its object.
• Related樹立じゅりつWrittenFormal: erecting something firm — political power, ties, records — as in 「国交樹立」; not used for facilities.
• Related設けるもうけるNeutralNeutral verb for setting up or providing, as in 「窓口を設ける」 or 「規則を設ける」; it also means to prepare, and its range of objects is wider than that of 「開設」.
• Related打ち立てるうちたてるNeutralNeutral verb for firmly establishing something or setting a record, as in 「新記録を打ち立てる」; not used for facilities.
• Related確立かくりつWrittenFormal: establishing a status or system so it holds firm, as in 「地位を確立」; stresses firmness, while 「開設」 stresses a new opening.
• Related設定せっていNeutralNeutral: setting parameters or a story background, as in 「パスワード設定」; stresses fixing conditions and never means opening a facility.
• Antonym閉鎖へいさWrittenFormal: closing down a facility or business, as in 「工場閉鎖」 or 「口座閉鎖」; the direct opposite of 「開設」.
• Antonym廃止はいしWrittenFormal: abolishing a service, facility or system, as in 「路線の廃止」; the opposite of 「開設」 for facilities and services.

Use 「開設」 for opening accounts, shops, websites or courses, as in 「口座開設」 and 「サイトを開設」. For founding a company or school pick 「設立」, for setting up an institution 「設置」, and for an organization starting up 「発足」. 「創立」 suits a school or company's birth, 「創業」 a business, 「結成」 a group, and 「樹立」 political power, ties or records. 「閉鎖」 and 「廃止」 are the antonyms for closing and abolishing. The verb 「設ける」 takes a wider range of objects; the remaining nouns are narrower, so use them only when their nuance fits.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 新あたらしい施設しせつ・設備せつび・口座こうざを設もうけ、運用うんようを開始かいしすること。