destain (verb)

1. The detective used a special solution to destain the blood smear on the letter, revealing a hidden message.

2. The protagonist's love interest accidentally spilled red wine on her white dress, but the cleaner was able to destain it perfectly, saving her from embarrassment.

3. The fashion designer used a destain technique to remove an ink mark from the fabric, ensuring the dress would be flawless on the runway.

4. In the horror novel, the protagonist discovered a mysterious bloodstain on the old diary pages, prompting them to destain the specimen for further clues.