deepvsdefWhat's the difference?

Which to use

“deep” and “def” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#12,646
“deep” frequency rank
#32,132
“def” frequency rank
44778
confusion score

Side-by-Side Comparison

Feature deep def
Definition profundo algo muito bom

Where the eye mixes deep and def

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
deep
3 ch
def

Why the eye confuses deep with def

A purely visual mix-up. deep (/diːp/) and def (/dɛf/) 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 44778, derived from the frequency rank of both members and their visual similarity.

deep is recorded at frequency rank #12,646, classified as anadj, pronounced /diːp/. def is at rank #32,132, tagged as anadj, pronounced /dɛf/.

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 44778, this pair ranks #20,654 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of deep vs def

Shared letters: de. Private to "deep": p. Private to "def": f.

"deep" · 4 letters · shape CVVC  ·  "def" · 3 letters · shape CVC

Known mistypes of this pair

  • deepddeep · deepp · dep · depe · edep

Frequently Asked Questions

Do "deep" and "def" mean the same thing in a sentence?
No. They are said differently (/diːp/ versus /dɛf/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "deep" vs "def" - which ranks higher?
"deep" is the more common of the two: it sits at frequency rank #12,646 in our Portuguese list, against #32,132 for "def". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "deep" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "def" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #20,654 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "deep" and "def" also get mixed up with nearby pairs, the highest-scored neighbour is "dat vs def". 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 #20,654 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list