じょうはつ蒸発jouhatsu
1.

The process in which a liquid transforms into a gas, typically occurring at the surface of the liquid when heat is applied, and can encompass phenomena like boiling.

2.

The act of disappearing or vanishing without notice, often used in a casual context to describe someone leaving or going missing, such as a person who has unexpectedly left home.

Example:

露は太陽が昇ると蒸発した。