18+

adj

"18" is a 0-letter English headword indexed on PlainSpell.

The verdict

“18+” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency English
3
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Suitable only for adults (e.g. adult content or mature audience content); mature, age of majority.

Corpus desk

Index EN-18 · 18+ · English

18+ · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MID 3 letters
  • VOW-0 0 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "1" 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 18+
PropertyValue
Headword18+
LanguageEnglish
Part of speechAdjective
Letters3
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “18+” in English

18+falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Rare enough to double-check

18+ is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Suitable only for adults (e.g. adult content or mature audience content); mature, age of majority.".

The misspelling generator found no plausible variants for 18+, a sign its spelling follows regular English conventions. Our dataset records no confusable match here, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From 18 being the age of majority in many countries. The correct English form is 18+, spelled 1-8-+.

Definition

  1. 1
    Suitable only for adults (e.g. adult content or mature audience content); mature, age of majority.

Etymology

From 18 being the age of majority in many countries.

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 "18+"?
"18+" is spelled 1-8-+.
What does "18+" mean?
As an adjective, "18+" means: Suitable only for adults (e.g. adult content or mature audience content); mature, age of majority.
What is the origin of the word "18+"?
From 18 being the age of majority in many countries. 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.

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

Source: FrequencyWords open word-frequency list