worry - noun

something or someone that causes anxiety; a source of unhappiness

a strong feeling of anxiety

worry - verb

• be worried, concerned, anxious, troubled, or uneasy
• be concerned with
• disturb the peace of mind of; afflict with mental agitation or distress
• be on the mind of
• lacerate by biting
• touch or rub constantly

worry - thesaurus

care   concern   headache   interest   occupy   trouble   vex   vexation