eco-

From French éco-, from Latin oeco-, from Ancient Greek οἶκος (oîkos, “house, household”).

• enPR: ĕkŏ-

• Audio (Southern England):

  (file)

• IPA^(key): /ˈiːkəʊ/
  • (Philippines) IPA^(key): /ˈɛkoʊ/

eco-

1. ecology or the environment (in the ecological sense)
2. economy

Primarily used in ecology/environment sense; if used in “economy” sense, usually as part of economy or a derived term.

• ecoporn
• eco-town

(Economics):

• econometrics
• econometry
• economy

• CEO, COE, CoE, Coe, EOC, ceo

• IPA^(key): (Central) [ˌɛ.ku]
• IPA^(key): (Balearic, Valencia) [ˌɛ.ko]

Borrowed from Ancient Greek οἶκος (oîkos, “house, household”).

eco-

1. eco- (forming words concerning ecology or the environment)

Borrowed from Latin echō, from Ancient Greek ἠχώ (ēkhṓ, “echo”).

eco-

1. echo- (forming words related to echos or other reflected waves)

• “eco-”, in Diccionari de la llengua catalana [Dictionary of the Catalan Language] (in Catalan), second edition, Institute of Catalan Studies [Catalan: Institut d'Estudis Catalans], April 2007
• “eco-”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2025
• “eco-” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.

• IPA^(key): /ˈeː.koː/

• Audio:

  (file)

eco-

1. eco-

eco-

1. forms words relating to echos
2. eco- (environmental)

Borrowed from French éco-.

• Hyphenation: e‧co-

eco-

1. eco- (concerning ecology or the environment)

• “eco-”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2025
• “eco-”, in Dicionário infopédia da Língua Portuguesa (in Portuguese), Porto: Porto Editora, 2003–2025
• “eco-”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2025

From Ancient Greek οἶκος (oîkos, “house, household”).

eco-

1. eco-; forms words concerning ecology or the environment

   ‎eco- + ‎sistema (“system”) → ‎ecosistema (“ecosystem”)

From Latin echō, from Ancient Greek ἠχώ (ēkhṓ, “echo”).

eco-

1. forms words relating to echos or other reflected waves

   ‎eco- + ‎cardiograma (“cardiogram”) → ‎ecocardiograma (“echocardiogram”)

• “eco-”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 10 December 2024