Bath/bæθ/ Definition 1 of 5Pro Tip 1/3Not for Drinking The 'bath' in a bathroom is for washing, not for consuming water like a drink. Remember, the bath water is not clean enough to drink! Pro Tip 2/3Privacy Expected Taking a bath is a private activity, often done alone in many cultures. Please knock before entering; I might be in the bath. Pro Tip 3/3Common Relaxation A bath is often used for relaxation, not just cleaning. After a long day, a warm bath can be very relaxing.