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Plane - Meaning, Definition & English Examples

A plane is a flat, two-dimensional surface that extends infinitely in all directions. In geometry, it is defined by three non-collinear points or a line and a point not on the line.

plane

/pleɪn/ /pleɪn/

Definition:

A flat surface or a vehicle designed for air travel.

Synonyms:

aircraft, jet, airliner, aeroplane

Part of Speech:

noun, verb, adjective

Antonyms:

rough, uneven

Common Collocations:

board a plane, plane ticket, plane crash, plane ride, pilot a plane

Derivatives:

planar, planer, planing

Usage Tips:

Use "plane" as a noun for aircraft or flat surfaces; as a verb for smoothing wood.

Common Phrases:

plain as day, on the same plane, flying by the seat of one's pants

Etymology:

From Latin "planum," meaning flat surface; later adapted for aviation in the 20th century.

Examples:

  • 1. The plane landed smoothly at the airport.
  • 2. He used a tool to plane the wooden board flat.
  • 3. The geometric shape lies on a single plane.
  • 4. She booked a ticket for the next available plane.

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