I understand

Catalan	Comprenc
Chinese (transliterated)	Wo liao jie
Croatian	Razumijen
Danish	Jeg forstår
Dutch	Ik versta
French	Je comprends
German	Ich verstehe
Hebrew (transliterated)	Ani mevin (masc.)/Ani mevinah (fem.)
Hungarian	Értem
Italian	Capisco
Japanese (transliterated)	Wakarimashita
Korean (transliterated)	Ihae hamnida
Lithuanian	Suprantu
Modern Greek (transliterated)	Katalavaino
Norwegian	Jeg forstår
Persian	Mifahmam
Polish	Rozumien
Portuguese	Eu comprendo
Russian (transliterated)	Ia ponimaiu
Serbian (transliterated)	Ja razumem
Spanish	Entiendo/Comprendo
Swedish	Jag forstår
Tagalog	Naiintindihan kó
Turkish	Anyorum
Vietnamese	Toi hieu
Yiddish (transliterated)	Ikh farshtay