

Это мой младший брат.
This is my younger brother.
Мой младший сын ходит в первый класс.
My youngest son is in first grade.
У тебя есть младший брат?
Do you have a younger brother?
"младший" is in the lesson "Education" (Level 35), along with 10 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.