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Dictionary

Words, grammatical forms and meanings linked to the ontology.

onto en · ADJ

Pronunciation

  • (US) audio cot-caught
  • /ˈɔn.tə/ Midland US, Southern US, without the cot–caught merger
  • /ˈɒn.tə/ (Received-Pronunciation)
  • /ˈɔn.tu/ Midland US, Southern US, without the cot–caught merger
  • /ˈɔn.tʉ/ (Northern-Ireland, Scotland)
  • /ˈɒn.tʊ/ (Received-Pronunciation)
  • /ˈɑn.tu/ (Northern-US, cot-caught-merger)
  • /ˈɑn.tə/ (Northern-US, cot-caught-merger)
  • /ˈɒn.tuː/ (Received-Pronunciation)
  • /ˈɑn.tʊ/ (Northern-US, before-vowel, cot-caught-merger, unstressed)
  • /ˈɔn.tʊ/ Midland US, Southern US, without the cot–caught merger
  • /ˈɔn.tə/ (Northern-Ireland, Scotland)
  • (Southern-England) audio

Etymology

From on + to, after into. Compare Saterland Frisian antou (“up to”).

Meanings

  1. (not-comparable, of a function) 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.

Forms

SpellingFeaturesLabelsSource
on to Australia, Canada, Commonwealth, Ireland, New-Zealand, South-Africa, UK, alternative, including, usually lexicographic

Relateds

unto · bijective · injective · one-to-one

Synonyms

surjective

onto en · ADP

Pronunciation

  • (US) audio cot-caught
  • /ˈɔn.tə/ Midland US, Southern US, without the cot–caught merger
  • /ˈɒn.tə/ (Received-Pronunciation)
  • /ˈɔn.tu/ Midland US, Southern US, without the cot–caught merger
  • /ˈɔn.tʉ/ (Northern-Ireland, Scotland)
  • /ˈɒn.tʊ/ (Received-Pronunciation)
  • /ˈɑn.tu/ (Northern-US, cot-caught-merger)
  • /ˈɑn.tə/ (Northern-US, cot-caught-merger)
  • /ˈɒn.tuː/ (Received-Pronunciation)
  • /ˈɑn.tʊ/ (Northern-US, before-vowel, cot-caught-merger, unstressed)
  • /ˈɔn.tʊ/ Midland US, Southern US, without the cot–caught merger
  • /ˈɔn.tə/ (Northern-Ireland, Scotland)
  • (Southern-England) audio

Etymology

From on + to, after into. Compare Saterland Frisian antou (“up to”).

Meanings

  1. Arriving upon or on top of (speaking of a physical or metaphorical movement).
    • My cat just jumped onto the keyboard.
    • Private-equity nabobs bristle at being dubbed mere financiers. Piling debt onto companies’ balance-sheets is only a small part of what leveraged buy-outs are about, they insist. Improving the workings of the businesses they take over is just as core to their calling, if not more so. Much of their pleading is public-relations bluster. 2013 June 22, “Engineers of a different kind”, in The Economist, volume 407, number 8841, page 70:
    • A new drug has just come onto the market.
    • That original list of 2,315 solutions was embedded in the game’s code. That means the game was playable offline and could be downloaded onto phones or computers. The solutions to the original Wordle game were predetermined through October 20, 2027. The New York Times (NYT) hasn’t said if it plans to make any more changes or additions to that initial list. 2022 February 15, David Goldman, “Why your Wordle answers might now be different than your friends’”, in CNN Business:
  2. (informal) Aware of.
    • The thought-police were onto my plans of world domination.
  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.

Forms

SpellingFeaturesLabelsSource
on to Australia, Canada, Commonwealth, Ireland, New-Zealand, South-Africa, UK, alternative, including, usually lexicographic

Antonyms

off of · off

Deriveds

call onto the carpet · get onto · back onto · be onto nothing · map onto · latch onto · onto function · log onto · be onto something · crack onto · be onto · wig onto · jump onto · cop onto · glomp onto · set onto · put onto · glomb onto · get one's fingers onto · hold onto your hat · hang onto · cotton onto · glom onto · freeze onto · sign onto · hold onto · clock onto · come onto · thereonto · stumble onto · hang onto your hat · mitten onto · whereonto

Translations (34)

he על (upon; on top of) · eo sur (upon; on top of) · arz عـ (upon; on top of) · ga ar (upon; on top of) · nl op (upon; on top of) · ru на (upon; on top of) · pt sobre (upon; on top of) · tr üstünde (upon; on top of) · grc ἐπί (upon; on top of) · is ofan á (upon; on top of) · tr üstüne (upon; on top of) · oc subre (upon; on top of) · cy ar (upon; on top of) · io adsur (upon; on top of) · oc sobre (upon; on top of) · fr sur (upon; on top of) · pl na (upon; on top of) · arz على (upon; on top of) · is á (upon; on top of) · pt no (upon; on top of) · bg на (upon; on top of) · fi päälle (upon; on top of) · kmr ser (upon; on top of) · it su (upon; on top of) · mr -च्या वर (upon; on top of) · ar عَلَى (upon; on top of) · oc sus (upon; on top of) · dsb na (upon; on top of) · bg върху (upon; on top of) · pt na (upon; on top of) · de auf (upon; on top of) · got 𐌰𐌽𐌰 (upon; on top of) · es sobre (upon; on top of) · sv upp på (upon; on top of)