形容詞 in advance:

1. situated ahead or going before
   同義詞：advance, advanced

副詞 in advance:

1. ahead of time; in anticipation
   同義詞：ahead, beforehand

1. Before visiting him, I called him up in advance.
   在拜訪他之前，我先打電話給他。
2. To make sure that he was at home, I called him up in advance.
   為了確定他在家，我事先打電話給他。
3. Suppose I reserve seats in advance.
   我先去定好座位吧。
4. If you warn me in advance, I will have your order ready for you.
   你若預先通知我，我就能給您準備好了。
5. Care or preparation in advance; foresight.
   先見，提前考慮或準備; 遠見
6. Send your luggage on in advance.
   請把行李預先送出。
7. As long as you've paid in advance we won't charge you for delivery.
   只要你預先付款，我們就不收你送貨費。
8. To ride in an aeroplane you have to book in advance.
   要乘飛機必須提前定位子。