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  • squid
    squid
    noun
    any of several ten-armed cephalopods, as of the genera Loligo and Ommastrephes, having a slender body and a pair of rounded or triangular caudal fins and varying in length from 4–6 inches (10–15 centimeters) to 60–80 feet (18–24 meters).
  • SQUID
    SQUID
    noun
    superconducting quantum interference device: a device that senses minute changes in magnetic fields, used to indicate neural activity in the brain.

squid

1 American  
[skwid] / skwɪd /

noun

  • squid,
    plural
  • squids
    plural
  1. any of several ten-armed cephalopods, as of the genera Loligo and Ommastrephes, having a slender body and a pair of rounded or triangular caudal fins and varying in length from 4–6 inches (10–15 centimeters) to 60–80 feet (18–24 meters).


SQUID 2 American  
[skwid] / skwɪd /

noun

  1. superconducting quantum interference device: a device that senses minute changes in magnetic fields, used to indicate neural activity in the brain.


squid 1 British  
/ skwɪd /

noun

  1. any of various fast-moving pelagic cephalopod molluscs of the genera Loligo, Ommastrephes , etc, of most seas, having a torpedo-shaped body ranging from about 10 centimetres to 16.5 metres long and a pair of triangular tail fins: order Decapoda (decapods) See also cuttlefish

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. (intr) (of a parachute) to assume an elongated squidlike shape owing to excess air pressure

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
SQUID 2 British  

abbreviation

  1. superconducting quantum interference device

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

squid 3 British  
/ skwɪd /

noun

  1. slang a pound sterling

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms


Etymology

Origin of squid1

First recorded in 1605–15; origin uncertain

Origin of SQUID2

First recorded in 1965–70


Explanation

A squid is a sea creature that's similar to an octopus but has ten arms instead of eight—including two extra tentacles they use for grabbing their prey. The largest squid ever found was nearly 60 feet long! Like their octopus relatives, squid are cephalopods, or mollusks with prominent heads and many arms. Squid can swim extremely fast by sucking in water and propelling it out (just like jet propulsion), and their skin can change color so they blend in with their surroundings. Squid squirt a kind of dark ink to confuse predators; some language experts believe that squid was once sailors' slang for squirt.

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Vocabulary lists containing squid

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

One of the senior researchers on the expedition, Andrew DeVogelaere, said he was focused on the seafloor, “thinking about the whale pits,” when the squid suddenly showed up.

From Los Angeles Times ● Sep. 5, 2026

Blue sharks can reach more than three metres in length and feed in open water on fish, squid, smaller sharks and sea birds.

From BBC ● Aug. 13, 2026

And at the end of a shift, he and his dysfunctional workplace family gather to share bowls of squid stew and taste the results of their work.

From Los Angeles Times ● Aug. 6, 2026

By comparison, the eyes of insects and squid arose through a different evolutionary route involving tissue on the surface of the head.

From Science Daily ● Jul. 26, 2026

Perhaps the smart bipedal dinosaurs, or the raccoons, or the otters, or the squid.

From "Cosmos" by Carl Sagan

At its core lies a sensitive magnetometer, known as a SQUID.

From Economist ● Jan. 11, 2018

That would create a magnetic field large enough to spot with a SQUID.

From Economist ● Jan. 26, 2017

What is used is a sensor called a SQUID, for superconducting quantum interference device.

From Textbooks ● Aug. 12, 2015

The Na’vi, eco-warriors with hardbodied girlfriends, fight back along with assorted alien dinosaurs, whales, squids, plants and blobs.

From Los Angeles Times ● Dec. 16, 2025

Octopuses, squids, cuttlefish, and their cephalopod relatives are masters of camouflage, able to instantly shift their skin color to blend into their surroundings.

From Science Daily ● Nov. 3, 2025

The Natural History Museum has suggested it is hard to estimate the global population of colossal squids.

From BBC ● Apr. 16, 2025

It’s possible the creatures were giant squids, or pinnipeds, like seals or sea lions.

From National Geographic ● Dec. 28, 2023

Elsewhere they saw beautiful bronze daggers for sale, dried squids and carved onyx, a potent magical elixir made of virgin's milk and shade of the evening, even dragon's eggs which looked suspiciously like painted rocks.

From "A Clash of Kings" by George R.R. Martin

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