FlaggvsflaskTell them apart

Quick tell: Flagg is a name, flask is a noun, so they fill different roles in a sentence.

Which to use

“Flagg” is a name and “flask” is a noun - they look or sound alike but fill different roles in a sentence.

#49,336
“Flagg” frequency rank
#22,379
“flask” frequency rank
71715
confusion score

Side-by-Side Comparison

Feature Flagg flask
Definition A village in Derbyshire, England. A narrow-necked vessel of metal or glass, used for various purposes; as of sheet metal, to carry gunpowder in; or of wrought iron, to contain quicksilver; or of glass, to heat water in, etc.

Letter map: Flagg vs flask

Shared letters muted; letters that set Flagg and flask apart highlighted. Shared run: 3.

5 ch
Flagg
5 ch
flask

Grammar separator: Flagg vs flask

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Flagg is aname and flaskanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 71715, derived from the frequency rank of both members and their visual similarity.

Flagg is recorded at frequency rank #49,336, classified as aname. flask is at rank #22,379, tagged as anoun, pronounced /ˈflɑːsk/.

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 71715, this pair ranks #45,703 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Flagg vs flask

Shared letters: afl. Private to "Flagg": g. Private to "flask": ks.

"Flagg" · 5 letters · shape CCVCC  ·  "flask" · 5 letters · shape CCVCC

Known mistypes of this pair

  • Flaggfalgg · fflagg · flgag · fllagg · lfagg
  • flaskfalsk · fflask · flaks · flaskk · flassk · fllask · flsak · lfask

Frequently Asked Questions

Is swapping "Flagg" for "flask" ever safe?
No - they are not even the same part of speech. "Flagg" is a name and "flask" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Flagg" vs "flask" - which ranks higher?
"flask" is the more common of the two: it sits at frequency rank #22,379 in our English list, against #49,336 for "Flagg". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "Flagg" vs "flask" is on the table, pick a follow-up below.

  • Full dictionary entry for "Flagg" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "flask" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #45,703 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Flagg" and "flask" also get mixed up with nearby pairs, the highest-scored neighbour is "Flagg vs flail". 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 #45,703 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