Definition of "Worry" :
noun: something or someone that causes anxiety; a source of unhappiness
"It's a major worry."
noun: a strong feeling of anxiety
"His worry over the prospect of being fired."
verb: touch or rub constantly
verb: lacerate by biting
verb: disturb the peace of mind of; afflict with mental agitation or distress
"I cannot sleep--my daughter's health is worrying me."
verb: be concerned with
"I worry about my grades."
verb: be worried, concerned, anxious, troubled, or uneasy
"I worry about my job."
verb: be on the mind of
"I worry about the second Germanic consonant shift."