Idiom: Keep One's Head On A SwivelCheck definitions of...keeponesheadonaswivelMeaningsTo be on the alert, to be watchful.A-Z Proximitieskeep one's fingers crossedkeep one's hair onkeep one's headkeep one's head above waterkeep one's head down keep one's head on a swivel keep one's knickers onkeep one's lips sealedkeep one's mouth shutkeep one's nose cleankeep one's options openSimilar Idiomskeep one's head on a swivelkeep a civil tongue in one's headkeep one's headkeep one's head above waterkeep one's head downkeep a cool headkeep one's cards close to one's chestearn one's keepkeep it one hundredkeep one's chin upkeep one's coolkeep one's ears openkeep one's eye on the ballkeep one's eyes peeledkeep one's fingers crossedkeep one's hair onkeep one's knickers onkeep one's lips sealedkeep one's mouth shutkeep one's nose cleanSimilar Phraseshead-to-headswivel chairswivel pinkeep abreastkeep an eye onkeep apartkeep offkeep quietkeep awaykeep backkeep companykeep downkeep goingkeep stepkeep guardkeep inkeep in linekeep mumkeep notekeep on