tranquillize

/ˈtræŋkwəlaɪz/
verb
  1. To make a person or animal calm or sleepy, especially by giving them a drug.
    • The veterinarian had to tranquillize the injured deer before treating its leg.
    • Doctors sometimes tranquillize patients who are extremely anxious before surgery.
    • The zookeepers tranquillized the lion to move it to a new enclosure.
  2. To make something or someone calm and peaceful without using drugs.
    • The sound of the ocean waves seemed to tranquillize her restless mind.
    • He tried to tranquillize the angry crowd with a gentle speech.
    • Soft music can tranquillize a fussy baby better than any medicine.
Antonyms
What does "tranquillize" mean? | whatsthatwordmean | whatsthatwordmean