variants often P
plural p's or ps ˈpēz How to pronounce p (audio) ; often P's or Ps
often attributive
1
a
: the 16th letter of the English alphabet
b
: a graphic representation of this letter
c
: a speech counterpart of orthographic p
2
: a graphic device for reproducing the letter p
3
: one designated p especially as the 16th in order or class
4
[abbreviation for pass]
a
: a grade rating a student's work as passing
b
: one graded or rated with a P
5
: something shaped like the letter P

p

2 of 5

abbreviation (1)

1
page; pages
2
parental generation
3
part
4
participle
5
past
6
pater
7
pawn
8
pence; penny
9
per
10
peseta
11
peso
12
petite
13
piano
14
pico-
15
pint
16
pipe
17
pitch
18
pole
19
port
20
power
21
pro
22
progressive
23
proton
24
purl

P

3 of 5

abbreviation (2)

1
pressure
2
[French poids] weight

P

4 of 5

symbol

phosphorus

p-

5 of 5

abbreviation (3)

para-

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Words Starting With P

Browse 30,821 words and phrases that start with the letter P, from pa to pyx-jury.

Examples of p in a Sentence

Noun a word that starts with a p a word that starts with p
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Instead of using p-tau217 and amyloid blood tests for diagnosis, Isaacson runs them to look for clues on how people are responding to treatment and lifestyle changes. Sandee Lamotte, CNN Money, 24 Aug. 2026 PrecivityAD2 is a single blood test that quickly assesses the proteins amyloid and tau, using mass spectrometry to measure plasma Aβ42/40 and p-tau217/np-tau217. New Atlas, 24 Aug. 2026 Kyle Walker and even some of the foreign lads were taking the p***. Jordan Campbell, New York Times, 23 Aug. 2026 The plumber will have to install a very long tailpiece from the bottom of the sink to the P-trap. Tim Carter, Hartford Courant, 22 Aug. 2026 See All Example Sentences for p

Word History

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1a

Time Traveler
The first known use of p was before the 12th century

Browse Nearby Words

Cite this Entry

“P.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/p. Accessed 31 Aug. 2026.

Kids Definition

p

noun
ˈpē
often capitalized
: the 16th letter of the English alphabet

Medical Definition

P

1 of 3 abbreviation
1
parental
2
part
3
percentile
4
pharmacopoeia
5
pint
6
pole
7
population
8
position
9
positive
10
posterior
11
pressure
12
pulse
13
pupil

P

2 of 3 symbol
phosphorus

p-

3 of 3 abbreviation
para-
p-dichlorobenzene
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