No: Vapor is defined as the gas phase of a substance that is mostly solid or liquid at equilibrium at standard temperature and pressure. Therefore, a liquid itself is never a vapor, but the liquid is in equilibrium with a vapor phase that contains the same chemical substance.

In a system at constant vapor pressure, a dynamic equilibrium exists between the vapor and the liquid. The system is in equilibrium because the rate of evaporation of liquid equals the rate of condensation of vapor.

-KarkatHorns

John Warren Macan has written:

'Computer evaluation of binary vapor-liquid equilibrium data' -- subject(s): Vapor-liquid equilibrium

When the concentration of the liquid (water) and gas (vapor) phases do not change.

It is vapor molecules in equilibrium with a liquid in a closed system exert a pressure proportional to the concentration of molecules in the vapor state.