Meaning of onto
Pronunciation: (on't, ôn'- unstressed on't&schwa, ôn'-), [key]
- to a place or position on; upon; on: to get onto a horse.
- in or into a state of awareness about: I'm onto your scheme.
- pertaining to a function or map from one set to another set, the range of which is the entire second set.
- a combining form meaning “being,” used in the formation of compound words: ontogeny.