自由にお使い下さい

Please feel free to use it.

→ 自由だ
phrase Rare #36,465
Please feel free to use it. A polite expression granting permission to use something freely. 自由に means “freely,” お使い下さい means “please use,” and 下さい is the formal kanji spelling of ください.
JA: この車を自由にお使い下さい。
EN: Please feel free to use this car.

この車を自由にお使い下さい

Please feel free to use this car.

私の書斎どのでも自由にお使い下さい

Feel free to use any book in my study.