公告的近义词、同义词

a brief report (especially an official statement issued for immediate publication or broadcast)

a statement that is emphatic and explicit (spoken or written)

a formal public statement; "the government made an announcement about changes in the drug war"; "a declaration of independence"

a public statement containing information about an event that has happened or is going to happen; "the announcement appeared in the local newspaper"; "the promulgation was written in English"