of a certain age

prep_phrase

"of-a-certain-age" is a 13-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
16
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Middle-aged or older.

Corpus desk

Index EN-of-a-certain-age · of a certain age · English

of a certain age · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 16 letters
  • VOW-7 7 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "O" 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 of a certain age
PropertyValue
Headwordof a certain age
LanguageEnglish
Part of speechPrep_phrase
Letters16
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “of a certain age” in English

of a certain agefalls 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

of a certain age is uncommon English outside the top frequency list, classed as aprep_phrase. Rarity is why readers land here mid-draft. 2 senses are on record.

Zero misspellings are on record for of a certain age in our index, suggesting the orthography follows predictable English patterns. Our confusable-pair dataset has no match for it, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: Perhaps a calque of French d'un certain âge. The correct English form is of a certain age, spelled O-F- -A- -C-E-R-T-A-I-N- -A-G-E.

Definition

  1. 1
    Middle-aged or older.
  2. 2
    Used other than figuratively or idiomatically: see of, a, certain, age: belonging to some particular specified age range.

Recorded use

Wiktionary examples

These source excerpts show how of a certain age appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Near-synonyms: (indeterminate) getting on in years, on in years, long in the tooth; (past middle age) older, senior, elderly, geriatric; see also Thesaurus:elderly
  2. a lady of a certain age

Etymology

Perhaps a calque of French d'un certain âge.

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 "of a certain age"?
"of a certain age" is spelled O-F- -A- -C-E-R-T-A-I-N- -A-G-E.
What does "of a certain age" mean?
As a prep_phrase, "of a certain age" means: Middle-aged or older.
What is the origin of the word "of a certain age"?
Perhaps a calque of French d'un certain âge. 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