agentvsaugmentConfusable pair

Quick tell: agent is a noun, augment is a verb, so they fill different roles in a sentence.

Which to use

“agent” is a noun and “augment” is a verb - they look or sound alike but fill different roles in a sentence.

#1,622
“agent” frequency rank
#22,577
“augment” frequency rank
24199
confusion score

Side-by-Side Comparison

Feature agent augment
Definition One who exerts power, or has the power to act. To increase; to make larger or supplement.

Where the eye mixes agent and augment

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

5 ch
agent
7 ch
augment

Why the eye confuses agent with augment

These two trip readers on the page rather than in the ear: agent is /ˈeɪ.d͡ʒənt/ while augment is /ɔːɡˈmɛnt/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 24199, derived from the frequency rank of both members and their visual similarity.

agent is recorded at frequency rank #1,622, classified as anoun, pronounced /ˈeɪ.d͡ʒənt/. augment is at rank #22,577, tagged as averb, pronounced /ɔːɡˈmɛnt/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 24199, this pair ranks #403,751 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of agent vs augment

Shared letters: aegnt. Private to "agent": -. Private to "augment": mu.

"agent" · 5 letters · shape VCVCC  ·  "augment" · 7 letters · shape VVCCVCC

Known mistypes of this pair

  • agentaegnt · agennt · agentt · agetn · aggent · agnet · gaent
  • augmentagument · augemnt · auggment · augmennt · augmentt · augmetn · augmment · augmnet

Frequently Asked Questions

Can "agent" and "augment" be used interchangeably?
No - they are not even the same part of speech. "agent" is a noun and "augment" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "agent" or "augment" show up more?
"agent" is the more common of the two: it sits at frequency rank #1,622 in our English list, against #22,577 for "augment". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "agent" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "augment" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #403,751 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "agent" and "augment" also get mixed up with nearby pairs, the highest-scored neighbour is "argent vs augment". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #403,751 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list