Be on the alert; watch carefully or vigilantly for something: keep your eyes peeled for a phonebox
More example sentences
- She said: ‘The local community have supported us so well and now we want them to keep their eyes open and to be vigilant.’
- I'll try to keep my eyes open and watch for them for you, but I don't think they'll come.
- But you've just got to keep your eyes open and watch out for the other cars.