Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “onto”

onto

preposition  /ˈɔn·tə, ˈɑn-, -tu/ us  
into a position on: Gennaro tossed his newspaper onto the table. be onto To be onto something or someone is to be aware of other information relating to the situation, esp. when someone is trying to deceive you: Everybody is onto you – why don’t you admit you lied?
(Definition of onto from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of onto?
Browse related topics

You are looking at an entry to do with Things added or attached to other things, but you might be interested in these topics from the Cutting and joining topic area:

Add Cambridge dictionaries to your browser to your website

Definitions of “onto” in other dictionaries

Word of the Day

blueprint

a photographic copy of an early plan for a building or machine

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More