1. (

• calm ,
• calm_down ,
• quiet ,
• tranquilize ,
• tranquillize ,
• tranquillise ,
• quieten ,
• lull ,
• still

) make calm or still; "quiet the dragons of worry and fear" ;

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" ;