paidvsPhiWhich spelling fits?

Quick tell: paid is a verb, Phi is a noun, so they fill different roles in a sentence.

Which to use

“paid” is a verb and “Phi” is a noun - they look or sound alike but fill different roles in a sentence.

#44,122
“paid” frequency rank
#47,646
“Phi” frequency rank
91768
confusion score

Side-by-Side Comparison

Feature paid Phi
Definition Präteritum (simple past) des Verbs pay einundzwanzigster Buchstabe des griechischen Alphabets

Letter map: paid vs Phi

Shared letters muted; letters that set paid and Phi apart highlighted. Shared run: 2. paid runs 4 letters (CVVC) against Phi's 3 (CCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
paid
3 ch
Phi

Part-of-speech tell for paid / Phi

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: paid is averb and Phianoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 91768, derived from the frequency rank of both members and their visual similarity.

paid is recorded at frequency rank #44,122, classified as averb, pronounced […]. Phi is at rank #47,646, tagged as anoun, pronounced [fiː].

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 91768, this pair ranks #35,176 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of paid vs Phi

Shared letters: ip. Private to "paid": ad. Private to "Phi": h.

"paid" · 4 letters · shape CVVC  ·  "Phi" · 3 letters · shape CCV

Known mistypes of this pair

  • paid ← apid · padi · paidd · ppaid

Frequently Asked Questions

Is swapping "paid" for "Phi" ever safe?
No - they are not even the same part of speech. "paid" is a verb and "Phi" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "paid" or "Phi"?
"paid" is the more common of the two: it sits at frequency rank #44,122 in our German list, against #47,646 for "Phi". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "paid" vs "Phi" is on the table, pick a follow-up below.

  • Full dictionary entry for "paid" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Phi" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #35,176 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "paid" and "Phi" also get mixed up with nearby pairs, the highest-scored neighbour is "Phi vs PMS". 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 #35,176 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list