Definition

1. Adjective:

   • Being ten more than twenty: Having the value or quantity of thirty; the number equivalent to the product of three and ten.

2. Noun:

   • The cardinal number that is the product of ten and three: The natural number following twenty-nine and preceding thirty-one, represented by the symbols 30 or XXX.
   • (Genetics) Abnormal complement of three X chromosomes in a female: A chromosomal condition (karyotype 47,XXX) where a female has three X chromosomes instead of the typical two.

Usage Examples

• Adjective:

  • She bought thirty apples for the party.
  • The journey takes approximately thirty minutes.

• Noun (Number):

  • Divide sixty by two to get thirty.
  • His age was listed as thirty on the form.

• Noun (Genetics):

  • The genetic test revealed a diagnosis of thirty, also known as Triple X syndrome.

Advanced Usage

• "In one's thirties": Referring to the period of life between the ages of 30 and 39.

  • She wrote her first novel in her thirties.

• "Thirty-something": Used as a noun or adjective to describe a person in their thirties, often implying a certain life stage.

  • The magazine targets a thirty-something audience.

Variants and Related Words

• Thirtieth (adj. & n.): Constituting number thirty in a sequence; the ordinal form corresponding to the cardinal number thirty.

  • They celebrated their thirtieth wedding anniversary.

• Thirtyfold (adj. & adv.): Thirty times as much or as many.

  • The investment saw a thirtyfold return.

Synonyms

• 30: The numeric symbol.
• XXX: The Roman numeral representation.
• Three tens: A descriptive phrase for the quantity.

Related Phrases

• Thirty pieces of silver: An idiom referring to a reward for betrayal, originating from the biblical story of Judas Iscariot.

  • He felt he was being offered thirty pieces of silver to testify against his friend.

• Thirty-second note (Music): A note with 1/32 the duration of a whole note.

• Thirty-year mortgage: A common term for a home loan with a repayment period of thirty years.

Idioms

• "Thirty thousand feet view": A broad, high-level perspective on a situation, as if seen from an airplane.

  • Let's start with a thirty-thousand-foot view of the project before we dive into details.

• "Dirty thirty": A colloquial term for a thirtieth birthday celebration.

  • We're planning a huge party for her dirty thirty.

Adjective

1. being ten more than twenty

Noun

1. (genetics) abnormal complement of three X chromosomes in a female
2. the cardinal number that is the product of ten and three