Definition

1. Adjective:
   • Unique and incomparable: Used to emphasize that someone or something is the single, most outstanding example of its kind, with no equal or rival.
   • Sole and singular: Can indicate that something is the only one of its type, often with a connotation of being special or preeminent.

Examples of Usage

• Adjective:
  • She is considered the one and only diva of her generation.
  • This is your one and only chance to see the artifact before it's returned.
  • He was introduced as the one and only champion of the world.

Advanced Usage

• Used as an intensifier: The phrase is often used for dramatic or emphatic effect, particularly in introductions or promotional language.
  • Ladies and gentlemen, please welcome the one and only Elvis Presley!
• Implies irreplaceability: Suggests that the person or thing cannot be substituted or replicated.
  • We lost the one and only copy of the manuscript in the fire.

Variants and Related Words

• Only (adj): Alone of its or their kind; single or solitary.
  • This is the only solution.
• Nonpareil (adj/n): Having no match or equal; peerless. (A person or thing having no equal.)
• Peerless (adj): Unequaled; unrivaled.
• Unrivaled (adj): Having no rival or competitor; unparalleled.

Synonyms

• Unique: Being the only one of its kind; unlike anything else.
• Incomparable: So good or great that nothing can be compared to it.
• Matchless: So good that nothing can equal it.
• Unparalleled: Having no parallel or equal; exceptional.

Related Phrases

• The one and only: A common, fixed phrase used as a title or epithet.
  • I'm reading a biography of the one and only Charlie Chaplin.
• Once-in-a-lifetime: (An experience or opportunity) unlikely to happen again in one's life. (This is a related concept but not a direct synonym.)

Related Idioms

• In a class of its own: So good that it is considered to be in a higher category than everything else.
  • As a strategist, she is in a class of her own.
• Second to none: Better than all others; the best.
  • The quality of their work is second to none.

Adjective

1. eminent beyond or above comparison
   • matchless beauty
   • the team's nonpareil center fielder
   • she's one girl in a million
   • the one and only Muhammad Ali
   • a peerless scholar
   • infamy unmatched in the Western world
   • wrote with unmatchable clarity
   • unrivaled mastery of her art