Definition

Noun A quantity equal to one of two equal parts that together constitute a whole; 50 percent; 0.5.

Usage

The term "one-half" is used to express a precise division of a whole into two equal parts. It functions as a singular noun and is often used in formal, mathematical, or descriptive contexts. * One-half of the students passed the exam. * The recipe calls for one-half cup of sugar. * The property was divided, with each heir receiving one-half.

Advanced Usage

• As a quantifier: "One-half" can precede a noun to specify the quantity.
  • One-half the audience left during the intermission.
• In fractional expressions: It is the standard written form for the fraction ½, especially in prose.
  • The reduction was by one-half.

Variants and Related Words

• Half (n.): A more common and less formal synonym for "one-half."
  • Half of the pie is gone.
• Fifty percent (n.): An equivalent expression using percentage terminology.
  • Fifty percent of the vote is required to win.
• Moiety (n.): A formal, often legal or anthropological, term for a half or a portion.
  • Each tribe was entitled to a moiety of the land.

Synonyms

• Half
• Fifty percent

Notes on Different Meanings

"One-half" has a single, precise mathematical meaning. It does not have idiomatic or figurative uses distinct from its literal meaning of 50%. The related word "half" has broader applications (e.g., "half-brother," "half-hearted").

Noun

1. one of two equal parts of a divisible whole
   • half a loaf
   • half an hour
   • a century and one half