What is another word for on lookout?
Pronunciation: [ˌɒn lˈʊka͡ʊt] (IPA) 
"On lookout" is a phrase usually used to describe someone who is actively searching for something or someone. Synonyms for this phrase include "vigilant," "watchful," "alert," "observant," "attentive," "cautious," "sharp," "keen," "mindful," and "diligent." These synonyms imply that the person is fully aware of their surroundings and is actively looking for any signs of danger or opportunity. These phrases are often used to describe security personnel, detectives, lifeguards, and other professionals who need to be on the lookout for potential threats. Whatever phrase is used, it all comes down to staying focused and being aware of what's going on at all times.
