pvsP1What's the difference?

Quick tell: p is a character, P1 is a noun, so they fill different roles in a sentence.

Which to use

“p” is a character and “P1” is a noun - they look or sound alike but fill different roles in a sentence.

#776
“p” frequency rank
#21,607
“P1” frequency rank
22383
confusion score

Side-by-Side Comparison

Feature p P1
Definition The sixteenth letter of the English alphabet, called pee and written in the Latin script. Abbreviation of position one, a common abbreviation used in motorsport to signify the frontmost starting position.

Letter map: p vs P1

Shared letters muted; letters that set p and P1 apart highlighted. Shared run: 1.

1 ch
p
2 ch
P1

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: p is acharacter and P1anoun. On the page they differ by 1 extra letter(s) - “p” sits inside “P1”. Our composite confusion score for this pair is 22383, derived from the frequency rank of both members and their visual similarity.

p is recorded at frequency rank #776, classified as acharacter, pronounced /piː/. P1 is at rank #21,607, tagged as anoun.

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 22383, this pair ranks #416,988 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of p vs P1

Shared letters: p. Private to "p": -. Private to "P1": -.

"p" · 1 letters · shape C  ·  "P1" · 1 letters · shape C

Frequently Asked Questions

Can "p" and "P1" be used interchangeably?
No - they are not even the same part of speech. "p" is a character and "P1" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "p" or "P1"?
"p" is the more common of the two: it sits at frequency rank #776 in our English list, against #21,607 for "P1". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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

Source: FrequencyWords open word-frequency list