Open English Wordnet
Verbs
(v)calm, calm down, quiet, tranquilize, tranquillize, tranquillise, quieten, lull, stillmake calm or still“quiet the dragons of worry and fear”
(v)sedate, calm, tranquilize, tranquillize, tranquillisecause to be calm or quiet as by administering a sedative to“The patient must be sedated before the operation”