armor

/ˈɑː.mə/

//ˈɑː.mə// noun

By · According to Wiktionary data (CC BY-SA) ·

"armor" is a 5-letter English headword indexed on PlainSpell.

The verdict

“armor” is a regularly-used English word, ranked #7,416 in English word frequency and used as a noun.

#7,416
frequency rank, English
5
letters
7
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A protective layer over a body, vehicle, or other object intended to deflect or diffuse damaging forces.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

armor vs arr
60% similar
armor vs aro
60% similar
armor vs army
60% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for armor
PropertyValue
Headwordarmor
LanguageEnglish
Part of speechNoun
IPA/ˈɑː.mə/
Letters5
Frequency rank#7,416
Misspellings tracked7
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “armor” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). armor lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for armor is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈɑː.mə/. Corpus data places it at rank #7,416 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 6 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 7 likely wrong-spelling variants for armor, with forms such as "amror", "armmor", and "armorr". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "arr", "aro", "army", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: 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… The correct English form is armor, spelled A-R-M-O-R.

Definition

  1. 1
    A protective layer over a body, vehicle, or other object intended to deflect or diffuse damaging forces.
  2. 2
    A natural form of this kind of protection on an animal's body.
  3. 3
    A metal plate, protecting a ship, military vehicle, or aircraft.
  4. 4
    A tank, or other heavy mobile assault vehicle.
  5. 5
    A military formation consisting primarily of tanks or other armoured fighting vehicles, collectively.
  6. 6
    The naturally occurring surface of pebbles, rocks or boulders that line the bed of a waterway or beach and provide protection against erosion.

Etymology

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).

Synonyms

body armourbody armormailchain mailplatesuit of armoursuit of armorhorncarapacechitinarmour platearmor platemechanizedcavalry

This word in other languages

armadura(Español)armure(Français)Rüstung(Deutsch)armadura(Português)

Common misspellings

Also misspelled as: amror,armmor,armorr,armro,aromr,arrmor,ramor

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of armor - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

amror2armmor1armorr1armro2aromr2arrmor1ramor2
Edit distance from "armor"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "armor"?
"armor" is spelled A-R-M-O-R. The IPA pronunciation is /ˈɑː.mə/.
What does "armor" mean?
As a noun, "armor" means: A protective layer over a body, vehicle, or other object intended to deflect or diffuse damaging forces.
What words are commonly confused with "armor"?
"armor" is commonly confused with "arr", "aro", "army". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "armor"?
The IPA (International Phonetic Alphabet) transcription for "armor" is /ˈɑː.mə/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "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 o... See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “armor”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is A-R-M-O-R - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈɑː.mə/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “arr” - see the side-by-side comparison. armor vs arr
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list