

Никто не знает истинную причину его ухода.
Nobody knows the true reason he left.
Он истинный профессионал своего дела.
He is a true professional at what he does.
Только в беде узнаёшь истинных друзей.
Only in hard times do you find out who your true friends are.
"истинный" is in the lesson "Adjectives 7" (Level 45), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.