CFAvscupWhich spelling fits?

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

Which to use

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

#23,198
“CFA” frequency rank
#805
“cup” frequency rank
24003
confusion score

Side-by-Side Comparison

Feature CFA cup
Definition Initialism of California Faculty Association. A concave vessel for drinking, usually made of opaque material (as opposed to a glass) and with a handle.

Letter map: CFA vs cup

Shared letters muted; letters that set CFA and cup apart highlighted. Shared run: 1.

3 ch
CFA
3 ch
cup

Grammar separator: CFA vs cup

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: CFA is aname and cupanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 24003, derived from the frequency rank of both members and their visual similarity.

CFA is recorded at frequency rank #23,198, classified as aname. cup is at rank #805, tagged as anoun, pronounced /kʌp/.

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 24003, this pair ranks #405,197 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of CFA vs cup

Shared letters: c. Private to "CFA": af. Private to "cup": pu.

"CFA" · 3 letters · shape CCV  ·  "cup" · 3 letters · shape CVC

Frequently Asked Questions

Do "CFA" and "cup" mean the same thing in a sentence?
No - they are not even the same part of speech. "CFA" is a name and "cup" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "CFA" or "cup" show up more?
"cup" is the more common of the two: it sits at frequency rank #805 in our English list, against #23,198 for "CFA". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

You've compared "CFA" and "cup". Here's where to go from here.

  • Full dictionary entry for "CFA" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cup" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #405,197 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "CFA" and "cup" also get mixed up with nearby pairs, the highest-scored neighbour is "CFA vs CGT". Nearby pair

Confusion rank #405,197 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