Meaning & Definition of word "Billionth"

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    Billionth

    /ˈbɪl.jənθ/

    noun:

    • 1. One part in a billion equal parts.
      • Example: He won the lottery with odds of one in a billionth.
    • 2. The ordinal form of billion, referring to the position in a count.
      • Example: She finished in the billionth place in the race.

    adjective:

    • 1. Constituting the ordinal number matching the number one billion in a sequence.
      • Example: This is the billionth time I've asked you to clean your room.
    • 2. Being one part in a billion equal parts.
      • Example: The concentration of the chemical in the water is one billionth of a percent.

    Etymology

    From the word billion + the suffix -th.

    Common Phrases and Expressions

    billionth of a second:

    A very short amount of time, used in scientific contexts.

    a billionth chance:

    An extremely unlikely possibility.

    one in a billion:

    Indicating something that is extremely rare.

    Related Words

    billion:

    The number equivalent to 1,000 million.

    one billion:

    A numerical value of 1,000,000,000.

    Slang Meanings of billionth

    Meaning: A very small amount or degree.

    Example Sentence: That problem is a billionth of what we used to deal with.

    Meaning: Referring to something that’s negligible or insignificant.

    Example Sentence: His complaint is about a billionth of an issue compared to the bigger problems.