English Reference
noun

formation

n.
US /fɔɹˈmeɪʃən/ UK /fɔːmˈeɪʃən/ for·ma·tion UK spelling formation's, formation's

  1. 01 B2 Upper Intermediate

    the process of making or starting something, like a new company or a habit.

    the act or process of assembling, creating, or developing a specific structure or entity.

    Simple

    The formation of the new committee took several weeks of planning.

    In context

    The rapid formation of ice crystals on the wings necessitated an immediate return to the hangar for de-icing procedures.

  2. 02 B2 Upper Intermediate

    a specific pattern or shape made by a group of people, planes, or ships moving together.

    a formal arrangement of troops, ships, or aircraft, often maintained during movement for tactical advantage.

    Simple

    The fighter jets flew in a perfect V formation over the stadium.

    In context

    The infantry maintained a tight defensive formation as they advanced across the open terrain, wary of potential ambushes.

    Usage

    Often used in the phrase 'in formation'.

  3. 03 C1 Advanced Technical Geology

    a particular layer of rock or a natural shape in the ground.

    a body of rock strata that consists of a certain lithologic type or combination of types.

    Simple

    The tour guide pointed out the unusual rock formations in the cave.

    In context

    The sedimentary formation revealed distinct layers of limestone and shale, providing a clear timeline of the region's prehistoric environment.

    stratumlayer
  4. 04 B2 Upper Intermediate Sport

    the way players are positioned on a field for a game.

    the tactical arrangement of players on a field or court at the start of a play or match.

    Simple

    The coach decided to change the team's formation for the second half.

    In context

    The manager opted for a more aggressive 4-3-3 formation, hoping to overwhelm the opponent's defensive line early in the match.

  5. 05 C2 Proficiency FormalAcademic Religion

    the process of training or shaping someone's character or skills.

    the process of influencing or guiding a person toward a deeper understanding of a vocation or spiritual path.

    Simple

    The school focuses on the moral formation of its students.

    In context

    The seminary provides a rigorous program for the spiritual and intellectual formation of future clergy members.

Usage formation of

After a switch to a, broadly, 3-5-2 formation the team improved, radically.

The Guardian· 17 Aug 2026

The region also contains multiple generations of stars living side by side, offering fresh clues about how star formation unfolds over time.

ScienceDaily· 5 Jul 2026

From Middle English formacioun, formation, borrowed from Old French formacion, from Latin fōrmātiō, from fōrmō (“form”, verb); see form as verb. Morphologically form + -ation.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin fōrmātiō
Level B2 · Upper Intermediate
Frequency Common
Updated