Volatile substance abuse, the abuse of household inhalants containing volatile compounds

Volatile organic compounds, organic compounds that can evaporate at normal temperature and pressure, and are often regulated by governments

Volatile acidity, a term used in winemaking to indicate an unacceptably high level of acid or vinegar and baking soda.

Volatile oil, also known as essential oil, an oil derived from plants with aromatic compounds used in cosmetics and flavoring

Volatility (finance), a measure of the risk in a financial instrument

Relative volatility

Volatile anaesthetics, a class of anaesthetics which evaporate easily

Volatility (chemistry), a measure of the tendency of a substance to vaporize. It has also been defined as a measure of how readily a substance vaporizes.

Volatile variables, variables that can be changed by an external process

Volatiles, the volatile compounds of magma (mostly water vapor) that affect the appearance and strength of volcanoes

Volatile Games, a video games maker

Volatile memory, memory that lasts only while the power is on (and thus would be lost after a restart)