PJ

PJ

1. (metrology) Symbol for petajoule, an SI unit of work or energy equal to 10¹⁵ joules.

PJ (plural PJs)

1. Abbreviation of pajama.
2. Initialism of private jet.
   • 2026 March 2, “The greenest flags: virtue signals that help you find love – from patchwork clothes to car sharing”, in The Guardian‎^[1], →ISSN:

     OK, I’m convinced. Now, excuse me while I go break up with Taylor Swift. Tay Tay bye bye, unless she loses her PJs.

3. (India) Initialism of poor joke.
   • 1987, Sainik Samachar, volume 34, Director of Public Relations, Ministry of Defence, page 11:

     To share the secret with you, just in case you are not a Delhite, 'PJ' stands for, yes, "Poor Joke.'

   • 2018, Kishor Kunal, The Casted Minds: A Nation where Purity of Blood Matters‎^[2]:

     “No, I don't,” I replied and quickly asked, “so, where are you now?” “Here, in front of you,” she replied with a witty smile. “I meant what are you doing these days—your occupation?” I smiled innocently. A PJ (poor joke) indeed.

PJ

1. (linguistics) Abbreviation of Proto-Japonic.
2. (Malaysia) Initialism of Petaling Jaya, a town.

• J.P., JP

PJ n (strong, genitive PJ, plural PJ)

1. (medicine, education) abbreviation of praktisches Jahr (“practical year”)
2. (economics) abbreviation of Personenjahr (“man-year”)

   Coordinate terms: PM, PW, PT, PS

PJ m (strong, genitive PJ, plural PJs)

1. (transport) (slang, pronounced by the English letter names) initialism of Privatjet

PJ f (genitive PJ, plural PJen)

1. (education) abbreviation of Projektstudie

• IPA^(key): /ˈpe.d͡ʒe/

PJ (plural PJ-PJ)

1. initialism of penanggung jawab (“responsible, person in-charge”)

From English project.

PJ(プロジェクト) • (purojekuto) 

1. (product development) project

• IPA^(key): /ˈpid͡ʒe/ [ˈpi.d͡ʒe]

PJ (uncountable)

1. (education) initialism of pendidikan jasmani (“physical education”)

PJ

1. initialism of Petaling Jaya

PJ f (invariable)

1. initialism of pessoa jurídica

• IPA^(key): /ˌpe ˈxota/ [ˌpe ˈxo.t̪a]

PJ m

1. (Argentine politics) initialism of Partido Justicialista (“Justicialist Party”), an Argentine political party