(ぶがいしゃ)

ぶがいしゃ
noun
outsider; third party; unauthorized person
person
1. outsider; third party; unauthorized person
A person who does not belong to a particular group, organization, or area, and therefore has no right to be involved or to enter.
部外者(ぶがいしゃ)()()禁止(きんし)です。
Entry by unauthorized persons is prohibited.
Outsiders should not interfere in this matter.
Security was tightened so that outsiders could not enter the meeting.

Usage

部外者(ぶがいしゃ) literally means "person outside the department/section." It is commonly used on signs restricting access and in discussions about who has the right to be involved in a matter.

Common collocations

Similar words

第三者(だいさんしゃ) (third party) is more neutral and legal, while 部外者(ぶがいしゃ) emphasizes not belonging to the group in question. よそ(もの) (stranger, outsider) is more colloquial.