Princeton's WordNet

1. veteran, old-timer, oldtimer, old hand, warhorse, old stager, stager(noun)

   an experienced person who has been through many battles; someone who has given long service

Wiktionary

1. old hand(Noun)

   A person who is experienced at a certain activity.

• bedrewe weesAfrikaans
• خَبير، ذو تَجْرِبَهArabic
• опитенBulgarian
• veteranoPortuguese (BR)
• starý rutinérCzech
• ein alter HaseGerman
• gammel rotteDanish
• παλιά καραβάνα, άνθρωπος με μακρόχρονη πείραGreek
• veterano, expertoSpanish
• vilunud meesEstonian
• با تجربهFarsi
• konkariFinnish
• vieux routierFrench
• וָתִיק וּמנוּסֶהHebrew
• अनुभवी व्यक्तिHindi
• stari lisacCroatian
• (tapasztalt) vén rókaHungarian
• orang berpengalamanIndonesian
• gamallí hettunni, vanurIcelandic
• veterano, (vecchio del mestiere)Italian
• 熟練者Japanese
• 숙련자Korean
• senas vilkasLithuanian
• zinātājs; pratējs; speciālistsLatvian
• orang yg berpengalamanMalay
• iemand met ervaringDutch
• dreven, erfarenNorwegian
• stary wygaPolish
• با تجربهPersian
• تجربه لرونكىPashto
• veteranoPortuguese
• om expe­rimentatRomanian
• опытный работникRussian
• starý macherSlovak
• star mačekSlovenian
• iskusančovekSerbian
• gammal i gametSwedish
• ผู้เชี่ยวชาญThai
• tecrübeli kimseTurkish
• 老手Chinese (Trad.)
• бувалий; докаUkrainian
• کہنہ مشق، ماہرUrdu
• lão luyệnVietnamese
• 老手Chinese (Simp.)