Noun
(euphemistic) Any taboo word starting with p, e.g. piss, penis, pussy, poof, prick, pajeet, or Paki.
(phonology) prosodic word, phonological word.
(grammar) A preposition or adverb that no longer performs a prepositional or adverbial function including particles in phrasal verbs, quasi-modal verbs, and determiner phrases and infinitive markers.
P-word (plural P-words)
Alternative letter-case form of p-word
My 4-year-old came home saying the P-word. Source: Internet