algaevsalgoWhich spelling fits?

Which to use

“algae” and “algo” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#14,062
“algae” frequency rank
#49,758
“algo” frequency rank
63820
confusion score

Side-by-Side Comparison

Feature algae algo
Definition plural of alga Clipping of algorithm.

Where the eye mixes algae and algo

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
algae
4 ch
algo

Look-alike desk: algae vs algo

A purely visual mix-up. algae (/ˈæl.d͡ʒi/) and algo (/ˈæl.ɡoʊ̯/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 63820, derived from the frequency rank of both members and their visual similarity.

algae is recorded at frequency rank #14,062, classified as anoun, pronounced /ˈæl.d͡ʒi/. algo is at rank #49,758, tagged as anoun, pronounced /ˈæl.ɡoʊ̯/.

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 63820, this pair ranks #80,907 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of algae vs algo

Shared letters: agl. Private to "algae": e. Private to "algo": o.

"algae" · 5 letters · shape VCCVV  ·  "algo" · 4 letters · shape VCCV

Known mistypes of this pair

  • algaeaglae · alage · algea · alggae · allgae · lagae
  • algoaglo · alggo · allgo · alog · lago

Frequently Asked Questions

Do "algae" and "algo" mean the same thing in a sentence?
No. They are said differently (/ˈæl.d͡ʒi/ versus /ˈæl.ɡoʊ̯/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "algae" vs "algo" - which ranks higher?
"algae" is the more common of the two: it sits at frequency rank #14,062 in our English list, against #49,758 for "algo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "algae" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "algo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #80,907 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "algae" and "algo" also get mixed up with nearby pairs, the highest-scored neighbour is "alc vs algo". 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 #80,907 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