How to say "The only" in Russian?

[Yedinstvennyy]

"The only" is Единственный in Russian.

Единственный means "The only" in English.

Word #330 of 6,000 by frequency in Russian.

Ты единственный, кто мне помог.

You are the only one who helped me.

• Оба, Both
• Причина, Reason
• Правый, right
• Общий, Common
• Команда, Team
• Прийтись, to have to; to fall on (a date)
• Необходимый, Necessary