Từ đồng nghĩa của gives the high sign

signalises signalizes gestures flags gesticulates indicates mimes motions pantomimes signs signals waves acts out uses one's hands uses sign language

warns notifies alerts apprises informs tells forewarns reminds instructs tips acquaints clues directs hints prompts signals wakes gives notice lets know puts wise tips off clues in fills in gives a warning to gives fair warning to gives warning makes aware puts someone on notice raises the alarm sounds the alarm puts on guard puts on the alert lays it out gives fair warning

cautions advises urges counsels exhorts recommends notifies signals tips gives the lowdown on pulls one's coat

forewarns warns informs alerts advises apprises cautions tips flags wakes alarms primes prepares prewarns premonishes admonishes dissuades forbodes portends telegraphs tips off gives notice puts on guard waves a red flag gives fair warning puts on the qui vive alerts about cautions about gives advance warning puts on the alert tips the wink warns in advance puts wise puts wise to tips off about clues in about pulls one's coat puts in the picture about tips someone the wink about puts a bug in one's ear notifies tells signals arouses clues in draws attention to waves flag puts in the picture prompts nudges mentions causes someone to remember jogs your memory notes makes you remember helps you remember gives a cue to reminds prods stresses refreshes memory gives someone a cue signals to helps someone remember hints to

gives the hook gives the idea gives the idea of gives the idea of being gives the impression gives the impression being gives the heave-ho gives the green light to gives the green light for gives the green light gives the go by gives the go-ahead to