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Daily Newsday Crossword

“Corrosion of iron”

The verified answer to the Newsday Crossword clue “Corrosion of iron”, with letter-by-letter analysis and the full puzzle context for the Monday, May 5, 2025 puzzle.

Published · Across · 4 letters

Hints first

Letters 4
First letter R
Last letter T
R ? ? T

A 4-letter across entry from the Monday puzzle

The Answer

R U S T

The answer to “Corrosion of iron” is RUST

Letters 4
Direction Across
Published May 5, 2025

Letter analysis: the 4-letter answer

Vowels, consonants, and crossword construction notes
Unique 4 of 4 positions
Vowels 1 25% of word
Consonants 3 non-vowels
First letter R starts with

The clue “Corrosion of iron” appeared in the Newsday Crossword on Monday, May 5, 2025 as a across entry. The verified answer is RUST — a 4-letter word that begins with R and ends with T.

This answer contains 1 vowel and 3 consonants. 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 RUST

RUST has been used as the answer for these Newsday Crossword clues
“Iron corrosion” Apr 15, 2026 “Iron corrosion” Jan 15, 2025

More clues from the May 5, 2025 puzzle

Monday Newsday Crossword
View full puzzle
The Sahara's continent: Abbr. 3 ℓ · D "Very funny!" 4 ℓ · D "It wasn't me!" 4 ℓ · D "Billy" farm animal 4 ℓ · D Shakespeare's river 4 ℓ · D Searches for prey 5 ℓ · A Elegant celebration 4 ℓ · A Jockeys' seats 7 ℓ · D Magic lamp residents 6 ℓ · D Letters after R 3 ℓ · D Native American ax 8 ℓ · D In __ of (instead of) 4 ℓ · D Sci-fi vehicles, for short 4 ℓ · D Auto fuel 3 ℓ · A "__ well that ends well" 4 ℓ · D Ten Commandments verb 5 ℓ · D Evolved into 6 ℓ · D Tangy topping for ribs 13 ℓ · A Corncob covering 4 ℓ · A Historical period 3 ℓ · A

Frequently asked questions about “Corrosion of iron”

What is the answer to “Corrosion of iron” in the Newsday Crossword?

The verified answer is RUST — a 4-letter word that appeared as a across entry on Monday, May 5, 2025.

How many letters is the answer to “Corrosion of iron”?

The answer RUST contains 4 letters.

Was “Corrosion of iron” an across or down clue?

This clue ran as a Across 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.

Corrosion of iron — Newsday Crossword Clue Answer | Newsday Crossword Answers