Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb tranquillize

2 senses of tranquillize

Sense 1
calm, calm down, quiet, tranquilize, tranquillize, tranquillise, quieten, lull, still -- (make calm or still; "quiet the dragons of worry and fear")
       => comfort, soothe, console, solace -- (give moral or emotional strength to)

Sense 2
sedate, calm, tranquilize, tranquillize, tranquillise -- (cause to be calm or quiet as by administering a sedative to; "The patient must be sedated before the operation")
       => affect -- (act physically on; have an effect upon; "the medicine affects my heart rate")