

Мой сосед — одинокий человек, у него нет семьи.
My neighbor is a lonely man; he has no family.
После переезда бабушка чувствует себя одинокой.
Since the move, Grandma has been feeling lonely.
Ты никогда не был одиноким в большом городе?
Have you never been lonely in a big city?
"одинокий" is in the lesson "Adjectives 4" (Level 17), 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.