onto

Adjective

Adjective

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A word that describes or modifies a noun or pronoun.

1. 1.Attaining each of the values in its codomain; having its image equal to its codomain.

   • Considered as a function on the real numbers, the exponential function is not onto, as it never takes on values less than or equal to zero.

Prep

Preposition

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A word placed before a noun, pronoun, or noun phrase to show its relationship to another part of the sentence.

1. 1.Arriving upon or on top of (speaking of a physical or metaphorical movement).

   • My cat just jumped onto the keyboard.
   • A new drug has just come onto the market.

2. 2.Aware of.(informal)

   • The thought-police were onto my plans of world domination.

3. 3.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.

Overall

Common· #1123

By learning goal

Everyday conversation

Rare

General reading & writing

Common

Academic

Rare

Literature

Common