armor
UK /ˈɑː.mə/ US /ˈɑːr.mɚ/ Syllables: ar-mor
Quick answer
A protective covering, historically made of metal, worn to guard the body in battle.
Armor is a protective covering that guards the body in battle. A knight wore armor made of metal plates, and a modern soldier may wear a vest that stops bullets. The word is also used for the hard cover on an animal, such as the armor of a beetle, and for the covering on vehicles such as tanks and ships. A suit of armor is a full set that covers the body from head to foot. In British English the spelling is armour.
"The suit of armor in the museum weighed nearly thirty kilograms."Meanings
- A protective covering, historically made of metal, worn to guard the body in battle.
- Protective plating on a vehicle or ship.
Example sentences
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"The knight put on his heavy armor."
Level A2, Meaning 1
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"Soldiers wear body armor in danger."
Level B1, Meaning 1
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"The tank has thick armor."
Level B1, Meaning 2
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"The museum has a full suit of armor."
Level A2, Meaning 1
Look-alikes and common mistakes
- armour : Armour is the British spelling. Armor is the American spelling. The meaning is the same.
- shield : A shield is carried in the hand to block blows. Armor is worn on the body.
Word family and forms
Forms: armors
Word partners
Words and phrases that often go with "armor".
- a suit of armor
- body armor
- armor plating
- armor-piercing
- wear armor
- armored vehicle
Origin
Armor came into English in the 1200s and 1300s from Anglo-Norman armure and Old French armeure, which come from Latin armatura, an arming or equipment. The ending changed to match other English words ending in -or. The root is arma, the Latin word for arms or weapons.
Checked against: Wiktionary, the free dictionary, Dictionary.com.
How to remember it
Armor has arm inside it. Armor protects your arms, and the rest of you too.
Test yourself
Which word fits the gap? "The knight put on his heavy _____."
Answer: armor
In your own words, what does "armor" mean?
A protective covering, historically made of metal, worn to guard the body in battle.
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Sources and credits
- Wiktionary, the free dictionary (CC BY-SA 4.0) · used for the origin · checked Oct 19, 2026
- Dictionary.com · used for the origin · checked Oct 19, 2026
Last reviewed October 20, 2026. Report a mistake on this page