1. to make calm, peaceful, or free from disturbance
Usage: third person singular present tense of tranquillize
2. to administer a sedative drug to in order to reduce anxiety or cause drowsiness
Usage: medical context

Examples

• The soft music tranquillizes her before bedtime.
• The veterinarian tranquillizes the anxious dog before surgery.
• Reading poetry tranquillizes his mind after a stressful day.
• The doctor tranquillizes patients who experience severe panic attacks.
• The gentle massage tranquillizes tense muscles.
• The medication tranquillizes aggressive behavior in some patients.