fish tank

American  

[fish tank] / ˈfɪʃ ˌtænk /

Sometimes fishtank

noun

• fish tanks
  plural

1. a glass-sided tank for keeping, displaying, or observing live fish or other aquatic animals.

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Other Word Forms

Noun Inflected Forms

• fish tanks
  plural

Etymology

Origin of fish tank

First recorded in 1880-85

Example Sentences

See Examples For:

fish tank

They’ve had to enlist friends to take care of their saltwater fish tank back home.

From The Wall Street Journal ● Jan. 6, 2026

Robbie Collin of the Daily Telegraph concurred, his headline describing his experience of the film "like watching £300m of glitter tipped into a fish tank."

From BBC ● Dec. 22, 2025

In the corner of the room, boxes and bags stuffed with clothes, towels and blankets that hadn’t been fouled by smoke from the Eaton fire sat next to a fish tank with discolored water.

From Los Angeles Times ● Mar. 20, 2025

The hotel included a 20,000-gallon fish tank at its reception desk and 3,049 rooms.

From Los Angeles Times ● May 16, 2024

To keep yourself from pacing, you focus on the fish tank.

From "Challenger Deep" by Neal Shusterman