billionとは 意味・読み方・使い方

語源

From French billion, from bi- (“two”) +‎ -illion.

発音

• enPR: bĭl'yən, IPA: /ˈbɪljən/
• ハイフネーション: bil‧lion
• 韻: -ɪljən

数詞

billion (plural billions)

1. Either of two large amounts:
   1. (US, modern British & Australian, short scale) a thousand million (logic: 1,000 × 1,000): 1 followed by nine zeros, 10.

      Synonyms: milliard, thousand million

      • 1921 January 24, “National Finances”, in Devon and Exeter Gazette, page 5:

        At the last assessment it [the national debt] amounts to seven billion pounds (£7,000,000,000).

      • 2013 May 25, “No hiding place”, in The Economist‎, volume 407, number 8837, page 74:

        In America alone, people spent $170 billion on “direct marketing”—junk mail of both the physical and electronic varieties—last year. Yet of those who received unsolicited adverts through the post, only 3% bought anything as a result.

      • 2019 October, Dan Harvey, “HS2 costs rise as schedule slips”, in Modern Railways, page 9:

        However, despite the prospect of HS2 being curtailed and the revelation that the programme is late and billions over budget, for now, at least, work on the scheme appears to be business as usual

      • 2023 May 18, Reuters, “Chipmakers look to Japan as worries about China grow”, in CNN Business‎:

        Micron said in a statement that it would bring extreme ultraviolet (EUV) technology to Japan, becoming the first semiconductor company to do so, and expected to invest up to 500 billion yen ($3.6 billion) with support from the Japanese government.

      • 2023 October 30, Herbold et al., “A large-scale comparison of human-written versus ChatGPT-generated essays” (18617), in Scientific Reports, volume 13, page 1:

        The ChatGPT service which serves as Web front-end to GPT-3.5 and GPT-4 was the fastest-growing service in history to break the 100 million user milestone in January and had 1 billion visits by February 2023.

      • 2025 February 8, “COMPLAINT FOR DECLARATORY AND INJUNCTIVE RELIEF”, in United States District Court for the Southern District of New York‎, page 2:

        Plaintiff States also receive billions of dollars in funds every year directly from Treasury through BFS under federal grant programs.

   2. (dated, British & Australian, long scale) A million (times a) million (logic: 1,000,000): a 1 followed by twelve zeros (10); a thousand milliard.

      Synonym: trillion (short scale)

      • 1778, Francis Maseres, “A Method of Finding, by the Help of Sir Isaac Newton's Binomial Theorem, a Near Value of the very Slowly Converging Infinite Series [...]”, in Philosophical Transactions of the Royal Society‎, volume lxviii, number xli:

        n = 1,000,000,000,000, that is, = a billion, or the square of a million

      • 2000 November 8, Stephen Ladyman, “[Speech to the House of Commons]”, in Hansard‎:

        There is a bill to be picked up for cleaning the former Soviet countries of £1 billion. By that I mean a British billion, because when I was little I was told that a billion was a million million and then the Americans said that it was a thousand million. Well, I am talking about a million million pounds worth of clean-up to be done.

2. (colloquial, hyperbolic) An unspecified very large number.

   Near-synonyms: gazillion; see also Thesaurus:zillion

   There were billions of people at the concert.

等位語

派生語

関連する語

• trillion, coined at same time
• zillion, coined after the series million, billion, trillion, quadrillion (modern slang)
• gazillion, from same origin
• -illion, from same origin

派生した語

参考

• (short scale) Previous: million. Next trillion.
• (long scale) Previous: milliard. Next billiard.
• ISO prefix: giga-