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Daily Newsday Crossword

“Green prefix”

The verified answer to the Newsday Crossword clue “Green prefix”, with letter-by-letter analysis and the full puzzle context for the Thursday, March 20, 2025 puzzle.

Published · Down · 3 letters

Hints first

Letters 3
First letter E
Last letter O
E ? O

A 3-letter down entry from the Thursday puzzle

The Answer

E C O

The answer to “Green prefix” is ECO

Letters 3
Direction Down
Published Mar 20, 2025

Letter analysis: the 3-letter answer

Vowels, consonants, and crossword construction notes
Unique 3 of 3 positions
Vowels 2 67% of word
Consonants 1 non-vowels
First letter E starts with

The clue “Green prefix” appeared in the Newsday Crossword on Thursday, March 20, 2025 as a down entry. The verified answer is ECO — a 3-letter word that begins with E and ends with O.

This answer contains 2 vowels and 1 consonant. The Newsday Crossword is published daily by Newsday on Long Island and edited by Stan Newman, whose Saturday Stumper is widely considered one of the toughest mainstream crosswords in print.

Other clues with the answer ECO

ECO has been used as the answer for these Newsday Crossword clues
“Mitsubishi mode” Apr 25, 2026 “Fuel-saving driving mode” Apr 3, 2026 “__-friendly (good for the environment)” Feb 11, 2026 “Earth-friendly prefix” Jan 3, 2026 “Earth-friendly prefix” Jun 3, 2025 “Environmentally conscious” Mar 21, 2025 “Prefix for tourist” Feb 27, 2025 “Earth-friendly prefix” Feb 18, 2025

More clues from the March 20, 2025 puzzle

Thursday Newsday Crossword
View full puzzle
Parting word 5 ℓ · D Not much milk 3 ℓ · D Annual Grammy recipient 7 ℓ · D Radisson rival 5 ℓ · D Arcade game faces 7 ℓ · D Remit 4 ℓ · A French sponge cake 4 ℓ · A Legs on a lobster 3 ℓ · D Long-limbed chimp 6 ℓ · D Online communication 4 ℓ · A Annum fraction 4 ℓ · D West Wing boss 7 ℓ · D Rock or Hemsworth 5 ℓ · D Mexican mayor 7 ℓ · D Smidgen 5 ℓ · D Tone down 4 ℓ · D Quite a spread 6 ℓ · A Shuns paper returns 6 ℓ · D Guerrilla marketer's goal 6 ℓ · A

Frequently asked questions about “Green prefix”

What is the answer to “Green prefix” in the Newsday Crossword?

The verified answer is ECO — a 3-letter word that appeared as a down entry on Thursday, March 20, 2025.

How many letters is the answer to “Green prefix”?

The answer ECO contains 3 letters.

Was “Green prefix” an across or down clue?

This clue ran as a Down entry.

Is this site affiliated with Newsday?

No. This is an independent fan reference site — we are not affiliated with Newsday. The Newsday Crossword is a trademark of its respective owner. We solve and verify each Newsday Crossword puzzle manually before publishing the answer key.

Green prefix — Newsday Crossword Clue Answer | Newsday Crossword Answers