sidejo signifas en angla

headquarters [headquarters]▼(center of organisation's activity)
noun
[UK: hed.ˈkwɔː.təz] [US: ˈhed.ˌkwɔːr.tərz]

seat [seats]▼(location of a governing body)
noun
[UK: siːt] [US: ˈsiːt]