Similar to 再帰的頭字語

National Football League

NIMBY

NISC

NLS

NPM

NRB

NSS

OAO

OCN

Original design manufacturer

Original equipment manufacturer

OMG

OTMA

Pao

PDF (disambiguation)

PGA

PKO

Project Management Body of Knowledge

PNG (disambiguation)

RBA

RBI

RPG

RTFM

RWD

SBF