worry
noun.
something or someone that causes anxiety; a source of unhappiness
New York traffic is a constant concern|it's a major worry
noun.
a strong feeling of anxiety
his worry over the prospect of being fired|it is not work but worry that kills|he wanted to die and end his troubles
Synonym: trouble
verb.
be worried, concerned, anxious, troubled, or uneasy
I worry about my job
verb.
be concerned with
I worry about my grades
Synonym: care
verb.
disturb the peace of mind of; afflict with mental agitation or distress
I cannot sleep--my daughter's health is worrying me
Synonym: vex
verb.
be on the mind of
I worry about the second Germanic consonant shift
verb.
lacerate by biting
the dog worried his bone
verb.
touch or rub constantly
The old man worried his beads
Antonym: reassure