from Wiktionary, Creative Commons Attribution/Share-Alike License

  • abbr. "X Phrase": a phrase which consists of either: (1) an optional specifier and an X-bar phrase, or (2) a conjunction sandwiched between two other XPs. The X is a "pro-letter" which can be substituted by letters such as N for noun, V for verb, P for preposition, I for inflectional, etc.
  • Initialism of eXtreme Programming.
  • Initialism of experience points.
  • experimental pursuit fighter (prefix)


Combination of prefix P and prefix modifier X (Wiktionary)
X is a variable which can stand for letters representing parts of speech such as: N (noun), V (verb), P (preposition), etc. (Wiktionary)



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