Princeton's WordNet

1. double agent(noun)

   a spy who works for two mutually antagonistic countries

Wiktionary

1. double agent(Noun)

   A spy who pretends to work for one side, when they are truthfully working for the other/ passing information to the other.

Dictionary of Military and Associated Terms

1. double agent

   Agent in contact with two opposing intelligence services, only one of which is aware of the double contact or quasi-intelligence services.

• dubbel agent, spioenAfrikaans
• عَميل مُزْدَوِجArabic
• двоен агентBulgarian
• agente duploPortuguese (BR)
• dvojitý špionCzech
• der DoppelagentGerman
• dobbeltagentDanish
• διπλός πράκτοραςGreek
• agente dobleSpanish
• topeltagentEstonian
• جاسوس دوجانبهFarsi
• kaksoisagenttiFinnish
• agent/-ente doubleFrench
• סוֹכֵן כָּפוּלHebrew
• दोहरा, दो दुश्मन देशों का गुप्तचरHindi
• dvostrukišpijunCroatian
• kettős ügynökHungarian
• agen gandaIndonesian
• njósnari sem leikur tveim skjöldumIcelandic
• (spia che fa il doppio gioco)Italian
• ２重スパイJapanese
• 이중 간첩Korean
• dviemšalims tarnaujantis agentasLithuanian
• spiegs vienlaicīgi divām pusēmLatvian
• pengintipMalay
• dubbelagentDutch
• dobbeltagentNorwegian
• podwójny agentPolish
• جاسوس دوجانبهPersian
• دوه جانبه جاسوسPashto
• agente duploPortuguese
• agent dubluRomanian
• двойной аген��Russian
• agent,špión (ktorý koná na dve strany)Slovak
• dvojni agentSlovenian
• dvostruki agentSerbian
• dubbelagentSwedish
• คนที่ทำงานให้สองฝ่ายที่เป็นคู่กรณีกันThai
• iki taraflı çalışan casusTurkish
• 雙面間諜Chinese (Trad.)
• подвійний агентUkrainian
• بیک وقت مخالف فریقوں کے لۓ کام کرنے والا مخبرUrdu
• gián điệp hai mangVietnamese
• 双重间谍Chinese (Simp.)