ago

/əˈɡəʊ/

//əˈɡəʊ// postp

"ago" is a 3-letter English headword indexed on PlainSpell.

The verdict

“ago” is in the everyday core of English, ranked #365 in English word frequency and used as a postp.

#365
frequency rank, English
3
letters
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Before now, before the present time

Visual similarity to commonly confused words

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

ago vs as
33% similar
ago vs at
33% similar
ago vs an
33% similar

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

Key facts for ago
PropertyValue
Headwordago
LanguageEnglish
Part of speechPostp
IPA/əˈɡəʊ/
Letters3
Frequency rank#365
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “ago” 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). ago 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 ago is 3 letters long, classified as a postp, and transcribed in the International Phonetic Alphabet as /əˈɡəʊ/. Corpus data places it at rank #365 in overall English word frequency, putting it firmly in the everyday core of the language. The dominant gloss from Wiktionary reads: "Before now, before the present time".

Zero misspellings are on record for ago in our index, since its letter sequence doesn't invite the usual edit-distance slips. It also participates in 20 confusable-pair relationships, "as", "at", "an", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Etymology tree Proto-Indo-European *ud-s-? Proto-Indo-European *h₂u-s-? Proto-Germanic *uz- Proto-West Germanic *uʀ- Proto-Indo-European *ǵʰeh₁-der. Proto-Germanic *gāną Proto-West Germanic *gān Proto-West Germanic *uʀgān Old English āgān Middle English ago… The correct English form is ago, spelled A-G-O.

Definition

  1. 1
    Before now, before the present time

Etymology

Etymology tree Proto-Indo-European *ud-s-? Proto-Indo-European *h₂u-s-? Proto-Germanic *uz- Proto-West Germanic *uʀ- Proto-Indo-European *ǵʰeh₁-der. Proto-Germanic *gāną Proto-West Germanic *gān Proto-West Germanic *uʀgān Old English āgān Middle English agon English ago From Middle English ago, agon (“passed”), past participle of agon (“to depart, escape, pass”), from Old English āgān (“to go away, pass away, go forth, come to pass”), from Proto-Germanic *uz- (“out”), *gāną (“to go”), equivalent to a- + gone, and by surface analysis, a- + go. Cognate with German ergehen (“to come to pass, fare, go forth”). Compare also Old Saxon āgangan (“to go or pass by”), Gothic 𐌿𐍃𐌲𐌰𐌲𐌲𐌰𐌽 (usgaggan, “to go forth”).

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); 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 "ago"?
"ago" is spelled A-G-O. The IPA pronunciation is /əˈɡəʊ/.
What does "ago" mean?
As a postp, "ago" means: Before now, before the present time
What words are commonly confused with "ago"?
"ago" is commonly confused with "as", "at", "an". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "ago"?
The IPA (International Phonetic Alphabet) transcription for "ago" is /əˈɡəʊ/. 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 "ago"?
Etymology tree Proto-Indo-European *ud-s-? Proto-Indo-European *h₂u-s-? Proto-Germanic *uz- Proto-West Germanic *uʀ- Proto-Indo-European *ǵʰeh₁-der. Proto-Germanic *gāną Proto-West Germanic *gān Proto-West Germanic *uʀgān Old English āgān Middle E... 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 “ago”

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

  • The one correct English spelling is A-G-O - every other letter order is a misspelling in standard orthography.
  • Say it as /əˈɡəʊ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “as” - see the side-by-side comparison. ago vs as
  • 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