Dictionary.com
Thesaurus.com

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.


noun

  1. ecology.

Eco 2 American  
[ek-oh, e-kaw] / ˈɛk oʊ, ˈɛ kɔ /

noun

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


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 ).


eco 1 British  
/ ˈiːkəʊ /

noun

    1. short for ecology

    2. ( as modifier )

      an eco group

"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

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)

"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

eco- 3 British  

combining form

  1. denoting ecology or ecological

    ecocide

    ecosphere

"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

Etymology

Origin of eco

First recorded in 1985–90

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.

"I think the reality is that mums would like an eco option but they are so busy and it would have to be priced appropriately."

From BBC

Samsara Eco plans to tailor microscopic organisms to retrieve materials from electronic waste.

From The Wall Street Journal

Since 2021, Samsara Eco has used artificial intelligence to design new enzymes that can break down commonly used types of plastics, allowing them to be reused in new products.

From The Wall Street Journal

Samsara Eco’s enzymes reduce plastics such as textiles and packaging into blocks, or monomers, that are indistinguishable from original material.

From The Wall Street Journal

If it can do the same with critical minerals, Samsara Eco thinks it could boost supply to industries including automaking.

From The Wall Street Journal