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• eco
  eco

  adjective

  ecological or environmental.
• Eco
  Eco

  noun

  Umberto, 1932–2016, Italian novelist and philosopher.
• eco-
  eco-

  a combining form representing ecology in the formation of compounds (ecosystem; ecotype ); also with the more general sense “environment,” “nature,” “natural habitat” (ecocide; ecolaw; ecopolitics ).

eco

¹ American  

[ek-oh, ee-koh] / ˈɛk oʊ, ˈi koʊ /

adjective

1. ecological or environmental.

2. not harmful to the environment.

   an eco resort with no air conditioning.

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noun

1. ecology.

Eco ² American  

[ek-oh, e-kaw] / ˈɛk oʊ, ˈɛ kɔ /

noun

1. Umberto, 1932–2016, Italian novelist and philosopher.

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eco- ³ American  

1. a combining form representing ecology in the formation of compounds (ecosystem; ecotype ); also with the more general sense “environment,” “nature,” “natural habitat” (ecocide; ecolaw; ecopolitics ).

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eco ¹ British  

/ ˈiːkəʊ /

noun

1. 1. short for ecology

   2. ( as modifier )

      an eco group

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Eco ² British  

/ ˈɛkəʊ /

noun

1. Umberto. born 1932, Italian semiologist and writer. His novels include The Name of the Rose (1981) and Foucault's Pendulum (1988)

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eco- ³ British  

combining form

1. denoting ecology or ecological

   ecocide

   ecosphere

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Etymology

Origin of eco

First recorded in 1985–90

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Example Sentences

See Examples For:

eco Eco eco-

The Morel Corp. is building a stately eco dome on a remote Greek island: a refuge for plutocratic preppers.

From The Wall Street Journal ● Oct. 9, 2026

Alannah Agnew - Cookstown, a passionate member and chairperson of her school eco team.

From BBC ● Aug. 22, 2026

Environmental charity Global Action Plan also worked with the students in the eco club on the project.

From BBC ● Jun. 4, 2026

"I am not some sort of flight-shaming eco warrior. I love flying – I always have," she said during a speech at the annual dinner of trade body Airlines UK in London.

From BBC ● Feb. 26, 2025

The entire boat was a floating eco hazard.

From "Artemis Fowl" by Eoin Colfer

Alpine Eco Trek said it has not been able to establish contact with 12 Britons who were booked on a tour to Mount Kailash and were in the region when the flash floods struck.

From BBC ● Aug. 27, 2026

Four South Africans travelling with the same Alpine Eco Trek agency as the missing British citizens were missing, according to the tourism board.

From Barron's ● Aug. 26, 2026

Twelve UK citizens with the Alpine Eco Trek agency were unaccounted for, the tourism board said.

From Barron's ● Aug. 26, 2026

Leamington's shop is a shared space on Bedford Street with Leamington Eco Hub.

From BBC ● Jun. 4, 2026

My father hadn’t said a word to me—or much to anyone—since I’d seen Ernie Eco wearing Joe Pepitone’s jacket.

From "Okay for Now" by Gary D. Schmidt

Jean Bosco Nzeyimana of Rwanda, who is the founder and CEO Of Habona Ltd., a company that uses biomass and waste to develop eco- friendly fuels that are used in rural Africa.

From Time ● Jun. 24, 2016

“Our clients in particular are eco- and health-minded, and the grown look certainly suits a girl who is more au naturel.”

From New York Times ● Jan. 29, 2014

Whatever the airport's main function may be, locals are hoping for a boost to the region's eco- and historical tourism.

From BBC ● Aug. 23, 2012

Among the biggest bugbears revealed in the consultation document – the draft ppdate guidance on green claims - are general, untestable claims like products being "eco-" or "environmentally friendly".

From The Guardian ● Mar. 23, 2010

The Queensland-based International Centre for Ecotourism Research this year calculated that outdoor tourism—which includes both eco- and adventure tourism—accounts for about one-quarter of Australia's tourism industry and generates about $14 billion in annual revenue.

From Time Magazine Archive

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