first aid

noun

"first-aid" is a 8-letter English headword indexed on PlainSpell.

The verdict

“first aid” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Basic medical care that is administered to a victim of an injury, usually where the injury is slight or where better care is unavailable.

Corpus desk

Index EN-first-aid · first aid · English

first aid · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "F" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for first aid
PropertyValue
Headwordfirst aid
LanguageEnglish
Part of speechNoun
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “first aid” in English

first aidranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

first aid is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Basic medical care that is administered to a victim of an injury, usually where the injury is slight or where better care is unavailable.".

No generated misspelling entries exist for first aid in our index, since its letter pattern doesn't lend itself to common typo substitutions. No confusable counterpart is on file for this word, which typically means the spelling is too distinctive to be mistaken for another word.

This entry carries no recorded etymology, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct English form is first aid, spelled F-I-R-S-T- -A-I-D.

Definition

  1. 1
    Basic medical care that is administered to a victim of an injury, usually where the injury is slight or where better care is unavailable.

Recorded use

Wiktionary example

These source excerpts show how first aid appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. He slipped and fell under the wagon's wheels, losing his left leg. His presence of mind was quite amazing. The report notes that Webb's knowledge of first aid probably saved his life, and he was able to instruct others who came to help him.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "first aid"?
"first aid" is spelled F-I-R-S-T- -A-I-D.
What does "first aid" mean?
As a noun, "first aid" means: Basic medical care that is administered to a victim of an injury, usually where the injury is slight or where better care is unavailable.
What language does "first aid" come from?
"first aid" is a English word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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.

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

Source: FrequencyWords open word-frequency list