1 heads-up /ˈhɛdzˈʌp/ noun Learner's definition of HEADS-UP
[singular] US, informal
: a message that tells or warns someone about something that is going to happen警告;通报;提醒 2 heads-up /ˈhɛdzˈʌp/ adjective
2 heads-up
/ˈhɛdzˈʌp/
adjective
Learner's definition of HEADS-UP
always used before a noun US, informal
: showing that you are very aware of what is happening around you : alert机警的