againvsagainstConfusable pair

Quick tell: again is a adverb, against is a preposition, so they fill different roles in a sentence.

Which to use

“again” is an adverb and “against” is a preposition - they look or sound alike but fill different roles in a sentence.

#14,048
“again” frequency rank
#25,511
“against” frequency rank
39559
confusion score

Side-by-Side Comparison

Feature again against
Definition Otra vez, de nuevo. Contra.

Where the eye mixes again and against

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

5 ch
again
7 ch
against

Look-alike desk: again vs against

These two trip readers on the page rather than in the ear: again is /əˈgɛn/ while against is /əˈɡeɪnst/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “again” sits inside “against”, and the parts of speech differ too (adverb vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 39559, derived from the frequency rank of both members and their visual similarity.

again is recorded at frequency rank #14,048, classified as anadv, pronounced /əˈgɛn/. against is at rank #25,511, tagged as aprep, pronounced /əˈɡeɪnst/.

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 39559, this pair ranks #163,837 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of again vs against

Shared letters: agin. Private to "again": -. Private to "against": st.

"again" · 5 letters · shape VCVVC  ·  "against" · 7 letters · shape VCVVCCC

Known mistypes of this pair

  • againaagin · againn · agani · aggain · agian · gaain
  • againstaaginst · againnst · againsst · againstt · againts · agaisnt · aganist · aggainst

Frequently Asked Questions

Is swapping "again" for "against" ever safe?
No - they are not even the same part of speech. "again" is an adverb and "against" a preposition, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "again" vs "against" - which ranks higher?
"again" is the more common of the two: it sits at frequency rank #14,048 in our Spanish list, against #25,511 for "against". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "again" and "against" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "again" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "against" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #163,837 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "again" and "against" also get mixed up with nearby pairs, the highest-scored neighbour is "again vs Agar". 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 #163,837 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list