ad•vis•ory adjective, nounBrE /ədˈvaɪzəri/NAmE /ədˈvaɪzəri/adjectivehaving the role of giving professional advicean advisory committee/body/servicethe Careers Advisory ServiceHe acted in an advisory capacity only. noun(pl. ad•vis•ories)(NAmE) an official warning that sth bad is going to happena tornado advisory