water-soluble (adjective)

1. The water-soluble dye was used in the ritual bath to cleanse the soul.

2. During World War II, water-soluble ink was developed to prevent secret messages from falling into enemy hands.

3. The architect used water-soluble materials to create an innovative design that incorporated natural water features.

4. The couple enjoyed a romantic getaway in a secluded cabin with a water-soluble hot tub overlooking a breathtaking view.