What is another word for is on to?
Pronunciation: [ɪz ˈɒn tuː] (IPA) 
The phrase "is on to" means to have figured out or discovered something. There are several synonyms that can be used in place of this phrase, such as "has caught on to," "is aware of," "has realized," "has uncovered," "has grasped," "has discerned," and "has comprehended." All of these synonyms convey the same idea of understanding or perceiving something that was previously unknown or hidden. Using synonyms in writing or conversation can add variety and depth to language, making communication more rich and engaging.
