Onto - definition, pronunciation, transcription

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Amer.  |ˈɑːntə|  American pronunciation of the word onto
Brit.  |ˈɒntə|  British pronunciation of the word onto

preposition

- Upon; on top of.
My cat just jumped onto the keyboard.
- (informal) Aware of.
(The thought-police were onto my plans of World domination.)
- (mathematics) Being an onto function with a codomain of (see below).
The exponential function maps the set of real numbers onto the set of positive real numbers.

adjective

- (mathematics, of a function) Assuming each of the values in its codomain; having its range equal to its codomain.
Considered as a function on the real numbers, the exponential function is not onto.

Extra examples

We climbed onto the building's roof.

The book fell onto the floor.

The water spilled onto the floor.

The cowboy leaped onto his horse.

Transfer the data onto a disk.

Turn left onto Third Street at the traffic light.

She watched him walk onto the platform.

Don't jump onto (=into) the bus while it's moving.

Pour the syrup on to the egg mixture.

The car rolled over onto its side.

Let's get back onto the highway.

The dining room looks out onto a pretty garden.

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