armor.
A protective layer over a body, vehicle, or other object intended to deflect or diffuse damaging forces.
Meaning & usage
A protective layer over a body, vehicle, or other object intended to deflect or diffuse damaging forces.
A natural form of this kind of protection on an animal's body.
A metal plate, protecting a ship, military vehicle, or aircraft.
A tank, or other heavy mobile assault vehicle.
A military formation consisting primarily of tanks or other armoured fighting vehicles, collectively.
The naturally occurring surface of pebbles, rocks or boulders that line the bed of a waterway or beach and provide protection against erosion.
Where this word comes from
Etymology tree Proto-Indo-European *h₂er- Proto-Indo-European *h₂(e)rmos Proto-Italic *armosder. Latin arma Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Indo-European *-h₂tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ō Latin armō Proto-Indo-European *-tew-? Proto-Indo-European *-r-eh₂? Latin -tūra Latin armātūra Old French armeure Anglo-Norman armurebor. Middle English armure English armor From Middle English armure, armour, armor, armeure, borrowed from Anglo-Norman armure and Old French armeüre, from Latin armātūra. Doublet of armature and armure. By surface analysis, arm (“to cover or furnish”) + -or (suffix forming agent nouns or nouns of quality, state, or condition).
To equip something with armor or a protective coating or hardening.
To provide something with an analogous form of protection.
Where this word comes from
Etymology tree Proto-Indo-European *h₂er- Proto-Indo-European *h₂(e)rmos Proto-Italic *armosder. Latin arma Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Indo-European *-h₂tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ō Latin armō Proto-Indo-European *-tew-? Proto-Indo-European *-r-eh₂? Latin -tūra Latin armātūra Old French armeure Anglo-Norman armurebor. Middle English armure English armor From Middle English armure, armour, armor, armeure, borrowed from Anglo-Norman armure and Old French armeüre, from Latin armātūra. Doublet of armature and armure. By surface analysis, arm (“to cover or furnish”) + -or (suffix forming agent nouns or nouns of quality, state, or condition).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.