English Reference
noun · verb

tank

n. · v.
US /ˈtæŋk/ UK /tˈæŋk/ tank UK spelling tanked, tanking

  1. 01 A2 Elementary

    n.a large container for holding liquids or gases, like water or fuel.

    n.a large, typically enclosed container designed for the storage of liquids or gases.

    Simple

    The plumber had to fix a leak in the water tank in the attic.

    In context

    The industrial facility maintains several pressurized tanks to store the liquid nitrogen required for the cooling process.

  2. 02 B1 Intermediate

    n.a heavy military vehicle with large guns that moves on metal tracks instead of wheels.

    n.an armoured fighting vehicle equipped with a large-calibre gun and moving on continuous caterpillar tracks.

    Simple

    The army moved its tanks to the border during the training exercise.

    In context

    Modern tanks are designed with advanced composite armour to withstand direct hits from anti-tank guided missiles.

    armoured vehicle
  3. 03 C1 Advanced Slang Computing

    n.in video games, a character who can take a lot of damage to protect their teammates.

    n.a character class in cooperative games designed to absorb damage and draw enemy attention away from more vulnerable allies.

    Simple

    Our team needs a strong tank to lead the attack on the boss.

    In context

    The player chose a warrior build to act as the primary tank, ensuring the mages could cast spells without being interrupted by enemy fire.

    defendermeat shield
    glass cannon
  4. 04 C2 Proficiency Technical Botany

    n.a part of some plants that catches and holds rainwater.

    n.a structure formed by overlapping leaves in certain plants, such as bromeliads, used to collect and retain water.

    Simple

    Frogs often lay their eggs in the water held by the plant's tank.

    In context

    Epiphytic bromeliads rely on their central tank to survive long periods without rainfall in the tropical canopy.

  5. 05 B2 Upper Intermediate Informal

    v.to fail completely or lose value very quickly.

    v.to decline sharply in value, performance, or quality; often used in economic or commercial contexts.

    Simple

    The company's stock started to tank after the bad news was released.

    In context

    Despite a massive marketing budget, the film tanked at the box office during its opening weekend.

  6. 06 C1 Advanced Informal Sport

    v.to lose a game on purpose to get an advantage later.

    v.to deliberately lose a sporting match or competition, typically to secure a better draft pick or future advantage.

    Simple

    Fans accused the team of tanking the season to get a better player next year.

    In context

    The league investigated whether the coach instructed his players to tank the final game to avoid a difficult opponent in the playoffs.

German army tanks and helicopters were providing support.

The Guardian· 14 Aug 2026

That’s less than it costs to fill the gas tanks of most SUVs.

Ars Technica· 9 Jul 2026

From Portuguese tanque (“tank, liquid container”), from an Indo-Aryan language, likely Gujarati ટાંકી (ṭā̃kī, “cistern”) or Marathi टांकी (ṭāṅkī). Compare the Arabic verb اِسْتَنْقَعَ (istanqaʕa, “to become stagnant, to stagnate”). In the sense of armoured vehicle, first attested in 1915, prototypes were described as tanks for carrying water to disguise their nature as well as due to physical resemblance.

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

This entry
Origin mr टांकी
Level B2 · Upper Intermediate
Frequency Common
Updated