billionth

An ordinal number used to describe the position of something in a sequence that is one of a billion equal parts.

• 🇵🇹Numeral ordinal usado para descrever a posição de algo numa sequência que ocupa o lugar correspondente a uma entre um bilhão de partes iguais; também designa cada uma dessas partes.

1. Ordinal position C1 formal

   Being the number one billion in a sequence; the ordinal form of one billion.

   • He was the billionth customer to enter the store.
   • The billionth star in the galaxy was cataloged by astronomers.
   • She received a prize as the billionth visitor to the website.

   🇵🇹Milionésimo bilionésimo

2. Fractional part C1 formal

   One part in a billion equal parts of a whole.

   • A billionth of a second is called a nanosecond.
   • The concentration of the chemical was measured in billionths of a gram.
   • Only a billionth of the original sample remained after the experiment.

   🇵🇹Bilionésima parte

• more billionth comparative form
• most billionth superlative form

A noun referring to the ordinal number corresponding to one billion, representing the position in a series or one of a billion equal parts.

• 🇵🇹Substantivo que designa o número ordinal correspondente a um bilhão, indicando posição numa série ou uma das um bilhão de partes iguais.

1. Ordinal position B2 formal

   The position of number 1,000,000,000 in a countable series of things.

   • He was the billionth visitor to the website.
   • The company celebrated its billionth customer.
   • She received a prize for being the billionth downloader of the app.

   🇵🇹Bilionésimo

2. Fractional part C1 formal

   One part in a billion equal parts of a whole.

   • A billionth of a second is called a nanosecond.
   • The concentration of the chemical was measured in billionths of a gram.
   • Only a billionth of the original sample remained after the experiment.

   🇵🇹bilionésima parte

3. Ordinal number B2 formal

   The ordinal number corresponding to one billion in counting order.

   • This is the billionth time I've told you to clean your room.
   • The billionth digit of pi is a subject of mathematical curiosity.
   • He finished in billionth place in the online competition.

   🇵🇹Bilionésimo

• billionths plural form
• billionths' possessive plural form
• billionth's possessive singular form

The cardinal numeral representing the quantity of one billion units (10⁹ in modern short-scale English); a composite number (2⁹×5⁹); a fundamental large-scale unit in the decimal system, widely used in mathematics, finance, economics, demographics, science, and global measurement. Note: In modern English (American and increasingly British), billion = 1,000,000,000; historically in British English, billion meant 10¹² (long scale), now obsolete. Also functions as a noun (denoting the symbol, quantity, or group of one billion), adjective/determiner (modifying nouns to indicate quantity), and pronoun (standing in for a plural noun phrase).

• 🇵🇹Numeral cardinal que representa mil milhões (10⁹) unidades, pessoas ou itens; unidade fundamental de grande escala no sistema decimal moderno; também usado como substantivo, determinante ou pronome.

1. Cardinal numeral: the number 1,000,000,000 A2 formal

   Used to denote a quantity of one billion persons or things; the integer equal to one thousand millions (10⁹) in modern short-scale English; a composite number (2⁹×5⁹); represents a billionfold quantity in counting, mathematics, finance, and everyday usage.

   • The global population exceeded eight billion in 2023.
   • She invested one billion dollars in renewable energy.
   • One billion plus one billion equals two billion.
   • The company's valuation reached one billion euros.
   • He watched one billion streams of his song worldwide.

   🇵🇹Numeral cardinal: o número 1.000.000.000

2. Noun: the number, symbol, or group of one billion B1 formal

   A noun referring to the cardinal number one billion; the numeral symbol 1,000,000,000; a set, collection, or group consisting of one billion items; in currency, a billion-unit denomination; often used in plural form ('billions') to indicate extremely large, indefinite quantities.

   • The number one billion is a critical threshold in demographic studies.
   • Circle the billions in this global economic report.
   • He donated several billions to humanitarian causes.
   • The contract specifies a billion of manufactured components.
   • In informal speech, 'billions' often emphasizes an almost unimaginable scale.

   🇵🇹Substantivo: o número, símbolo ou grupo de um bilhão

3. Adjective/Determiner: amounting to one billion A2 formal

   Used attributively before a noun to indicate that the quantity or number of the noun is one billion; modifies plural countable nouns to specify exact quantity; typically remains singular when preceded by a specific number (e.g., two billion years).

   • They launched a billion-dollar infrastructure initiative.
   • We need a billion additional doses of the vaccine.
   • The simulation requires a billion iterations to converge.
   • She has a billion reasons to support the cause.
   • A billion mobile devices were connected to the internet last year.

   🇵🇹Determinante/adjetivo: em quantidade de um bilhão

4. Pronoun: one billion people or things (plural) B2 formal

   Used as a pronoun to refer to one billion previously mentioned or understood persons or things; takes plural verb agreement; often used in the plural form 'billions' to denote an unspecified vast number.

   • Ten billion data points were collected, but only a billion were analyzed.
   • I invited five billion potential users; a billion engaged with the platform.
   • How many units should we forecast? — A billion will align with market projections.
   • Several production lines operated, but a billion units met export standards.
   • Of the transactions processed, a billion were flagged for review.

   🇵🇹Pronome: um bilhão de pessoas ou coisas

• billionth ordinal