EnglishMain Dictionary
onto
Universal Words
(also on to) preposition
used with verbs to express movement on or to a particular place or position:
Move the books onto the second shelf. * She stepped down from the train onto the platform.
PHRASALVERBS
be onto sb
1 (informal) to know about what sb has done wrong:
She knew the police would be onto them.
2 to be talking to sb, usually in order to ask or tell them sth:
They've been onto me for ages to get a job.
be onto sth to know about sth or be in a situation that could lead to a good result for you:
Scientists believe they are onto something big. * She's onto a good thing with that new job.
