ontoとは 意味・読み方・使い方

語源

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

発音

• (stressed)
  • (英国発音) IPA: /ˈɒn.tuː/
  • (米国発音) IPA: /ˈɔn.tu/
  • (Northern 米国発音 or cot–caught merger) IPA: /ˈɑn.tu/
• (英国発音) (unstressed, before consonants) IPA: /ˈɒn.tə/
  • (米国発音) (unstressed, before consonants) IPA: /ˈɔn.tə/
  • (Northern 米国発音 or cot–caught merger, unstressed form, before consonants) IPA: /ˈɑn.tə/
• (英国発音) (unstressed, before vowels) IPA: /ˈɒn.tʊ/
  • (米国発音) (unstressed, before vowels) IPA: /ˈɔn.tʊ/
  • (Northern 米国発音 or cot–caught merger, unstressed form, before vowels) IPA: /ˈɑn.tʊ/
• ハイフネーション: on‧to
• 韻: (unstressed, before consonants) -ɒntə

前置詞

onto

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

   Antonyms: off, (colloquial) off of

   My cat just jumped onto the keyboard.

   A new drug has just come onto the market.

   • 2013 June 22, “Engineers of a different kind”, in The Economist, volume 407, number 8841, page 70:

     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.

   • 2022 February 15, David Goldman, “Why your Wordle answers might now be different than your friends’”, in CNN Business‎:

     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.

2. (informal) Aware of.

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

3. (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.

派生語

形容詞

onto (not comparable)

1. (mathematics, of a function) Attaining each of the values in its codomain; having its image equal to its codomain.

   Synonym: surjective

   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.

参考

• (mathematics): one-to-one, injective, bijective

参考

• unto

アナグラム

• Noto, Toon, noot, noto-, oont, tono-, toon

接頭辞

onto-

1. being

派生語

アナグラム

• Noto, Toon, noot, noto-, oont, tono-, toon