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Learner's definition of ONTO  
: to a position that is on (something, such as a surface, area, or object) — often used figuratively
: in a direction that allows you to get to or see (something)
— used to say that someone knows about what someone is doing or has done
   b  — used to say that someone is becoming aware of or is finding something
chiefly British  : in the process of talking to (someone) usually to tell or ask something
Comments & Questions  
Comments & Questions
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