/ ədˈvaɪz; NAmE / verb
1.
advise (sb) (against sth / against doing sth) to tell sb what you think they should do in a particular situation :
[ v ]
I would strongly advise against going out on your own.
[ vn ]
Her mother was away and couldn't advise her.
I'd advise extreme caution.
[ vn to inf ]
Police are advising people to stay at home.
I'd advise you not to tell him.
[ v that ]
They advise that a passport be carried with you at all times.
( BrE also)
They advise that a passport should be carried with you at all times.
[ vn that ]
It is strongly advised that you take out insurance.
[ v -ing ]
I'd advise buying your tickets well in advance if you want to travel in August.
[ v speech , vn speech ]
'Get there early,' she advised (them).
—see also ill-advised , well advised ➡ note at recommend
2.
advise (sb) on sth | advise (sb) about sth / about doing sth to give sb help and information on a subject that you know a lot about :
[ v ]
We employ an expert to advise on new technology.
[ vn ]
She advises the government on environmental issues.
[ v wh- ]
The pharmacist will advise which medicines are safe to take.
[ vn wh- ]
Your lawyer can advise you whether to take any action.
3.
advise sb (of sth) ( formal ) to officially tell sb sth
SYN inform :
[ vn ]
Please advise us of any change of address.
[ vn wh- ]
I will contact you later to advise you when to come.
[ vn that ]
I regret to advise you that the course is now full.
••
WORD ORIGIN
Middle English : from Old French aviser , based on Latin ad- to + visere , frequentative of videre to see. The original senses included look at and consider , hence consult with others .