to cause someone to worry
 nervous temperament;  worrier's disposition
 don't worry;  no worries;  never mind
 don't worry;  there's no need to worry
 don't worry about it;  there is nothing to fear;  there is no need for anxiety;  everything is under control
 to cause someone to worry
 don't worry about it;  there is nothing to fear;  there is no need for anxiety;  everything is under control
 can't help worrying;  besides myself with worry
 don't worry;  no worries;  never mind
 don't worry about it;  there is nothing to fear;  there is no need for anxiety;  everything is under control