P vs o

P

character

  • The sixteenth letter of the English alphabet, called pee and written in the Latin script. 

name

  • The set of all problems that are solvable in polynomial time by a deterministic Turing machine 

noun

  • A P wave on an electrocardiogram. 

o

character

  • The fifteenth letter of the English alphabet, called o and written in the Latin script. 

adj

  • Over 

noun

  • A zero (used in reading out numbers). 

  • Operator 

  • The name of the Latin-script letter O/o. 

  • Object, see SVO 

How often have the words P and o occurred in a corpus of books? (source: Google Ngram Viewer )