io

or ’i·o

[ ee-oh ]

/ ˈi oʊ /

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noun, plural i·os.

a small, solitary hawk, Buteo solitarius, having two plumage phases and breeding only on the Island of Hawaii, where it is a rare species and the only indigenous bird of prey: classified as near threatened.

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Question 1 of 7

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His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Also called Ha·wai·ian hawk

[huh-wahy-uhn hawk, -wah yuhn] /həˈwaɪ ən ˈhɔk, -ˈwɑ yən/ .

Origin of io

From Hawaiian ʿio

Words nearby io

in-world, inwrap, inwreathe, inwrought, in your face, io, Ioannina, Iobates, IOC, iod-, iodate

Other definitions for io (2 of 7)

Io¹

[ ahy-oh, ee-oh ]

/ ˈaɪ oʊ, ˈi oʊ /

noun

Classical Mythology. a woman who, being loved by Zeus, was transformed into a white heifer and was, at the wish of Hera, first guarded by Argus and later pursued through the world by a gadfly until she reached Egypt, where she resumed her true shape: identified by the Egyptians with Isis.

Astronomy. a large volcanically active moon of the planet Jupiter.

Other definitions for io (3 of 7)

Io²

[ ahy-oh, ee-oh ]

/ ˈaɪ oʊ, ˈi oʊ /

noun, plural I·os.

Io moth.

Other definitions for io (4 of 7)

Io³

Symbol, Chemistry.

ionium.

Other definitions for io (5 of 7)

Io.

abbreviation

Iowa.

Other definitions for io (6 of 7)

I/O

inboard-outboard.

Computers. input/output.

Other definitions for io (7 of 7)

I.O.

or IO, i.o.

abbreviation

indirect object.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use io in a sentence

All such finds are evaluated for use “ in an information operation (IO) campaign to mold public opinion.”
Osama's Dirty Mind|Asra Q. Nomani|May 14, 2011|DAILY BEAST
Taurus draws on the myth of Io, the nymph who was turned into a snow-white cow.
Horoscopes: May 8-14|Starsky + Cox|May 7, 2011|DAILY BEAST
At l. 568 of the same book begins the story of the love of Jupiter for Io.
Chaucer's Works, Volume 1 (of 7) -- Romaunt of the Rose; Minor Poems|Geoffrey Chaucer
In the final vowels io, we have the same term, with the same meaning which they carry in the Seneca, or old Mingo word Ohio.
The Indian in his Wigwam|Henry R. Schoolcraft

Ed io che intesi ci che non dicevi,M'innamorai di te perch tacevi.
The Devourers|Annie Vivanti Chartres
Then she carried out her revenge by sending an enormous gadfly to torment poor Io, who was still in the form of a heifer.
Stories of Old Greece and Rome|Emilie Kip Baker
Reluctantly the ruler of the gods agreed to this demand, and Io became once more a beautiful maiden.
Stories of Old Greece and Rome|Emilie Kip Baker

British Dictionary definitions for io (1 of 5)

the internet domain name for

British Indian Ocean Territory

British Dictionary definitions for io (2 of 5)

Io¹

/ (ˈaɪəʊ) /

noun

Greek myth a maiden loved by Zeus and turned into a white heifer by either Zeus or Hera

British Dictionary definitions for io (3 of 5)

Io²

/ (ˈaɪəʊ) /

noun

the innermost of the four Galilean satellites of Jupiter, displaying intense volcanic activity. Diameter: 3640 km; orbital radius: 422 000 km

British Dictionary definitions for io (4 of 5)

Io³

the chemical symbol for

ionium

British Dictionary definitions for io (5 of 5)

I/O

abbreviation for

input/output

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

Scientific definitions for io

[ ī′ō, ē′ō ]

One of the four brightest satellites of Jupiter and the fifth in distance from the planet. It was first sighted by Galileo. See Note at moon.