Oxford Advanced American Dictionary

Definition of safety noun from the Oxford Advanced Learner's Dictionary

Oxford3000

safety

noun
safety pronunciation English ˈseɪfti safety pronunciation American ˈseɪfti
plural safeties
 
1 [uncountable] the state of being safe and protected from danger or harma place where children can play in safetyThe police are concerned for the safety of the 12-year-old boy who has been missing for three days.He was kept in custody for his own safety.2 [uncountable] the state of not being dangerousI'm worried about the safety of the treatment.safety standardsa local campaign to improve road safetyThe airline has an excellent safety record.3 [uncountable] a place where you are safeI managed to swim to safety.We watched the lions from the safety of the car.They reached safety seconds before the building was engulfed in flames.4 [countable] (North American English) = safety catch5 [countable] (North American English) (in American football ) a defending player who plays in a position far away from the other team
Idioms

safety first

(saying) safety is the most important thing

there's safety in numbers

(saying) being in a group makes you safer and makes you feel more confident