1. [n]  something or someone that causes anxiety; a source of unhappiness; "New York traffic is a constant concern"; "it's a major worry"
2. [n]  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"
3. [v]  think moodily or anxiously about something
4. [v]  be concerned with or about something or somebody
5. [v]  touch or rub constantly; "The old man worried his beads"
6. [v]  lacerate by biting; of dogs
7. [v]  disturb the peace of mind of; afflict with mental agitation or distress
8. [v]  be concerned with; "I worry about my grades"
9. [v]  be worried, concerned, anxious, troubled, or uneasy
10. [v]  be on the mind of; "What is worrying you?"

Worry
Here is the first book to explore every facet of the most common and debilitating emotional state: worry. While a healthy level of worry can help us perform efficiently at work, anticipate dangers, and learn from past errors, in its extreme forms worry can become toxic --poisoning our pleasures, sabotaging our achievements, and preventing us from resolving actual problems.In this lucid, reassuring book, Dr. Hallowell discusses all types of worry, explores their underlying causes, and considers the best strategies for coping. Case histories and anecdotes illuminate such issues as worry in relationships; the correlation between worry and conditions like , depression, social phobia, generalized anxiety disorder, and obsessive-compulsive disorder; worry at work; and the worried child. In an effective section titled Remedies That Work, Dr. Hallowell shows us how to evaluate, control, and manage worry, both with and without medication.Even born worriers can learn to use their worry wisely and channel it healthily. This book is the key. Filled with practical solutions and insightful guidance, Worry is an invaluable aid to living a happier, calmer, and more rewarding emotional life.

more details ...

1. \Wor"ry\, v. t. [imp. & p. p. {Worried}; p. pr. & vb. n.
   {Worrying}.] [OE. worowen, wirien, to strangle, AS. wyrgan in
   [=a]wyrgan; akin to D. worgen, wurgen, to strangle, OHG.
   wurgen, G. w["u]rgen, Lith. verszti, and perhaps to E.
   wring.]
   1. To harass by pursuit and barking; to attack repeatedly;
      also, to tear or mangle with the teeth.
            A hellhound that doth hunt us all to death; That dog
            that had his teeth before his eyes, To worry lambs
            and lap their gentle blood.           --Shak.
   2. To harass or beset with importunity, or with care an
      anxiety; to vex; to annoy; to torment; to tease; to fret;
      to trouble; to plague. ``A church worried with
      reformation.'' --South.
            Let them rail, And worry one another at their
            pleasure.                             --Rowe.
            Worry him out till he gives consent.  --Swift.
   3. To harass with labor; to fatigue. [Colloq.]
   

2. \Wor"ry\, v. i.
   To feel or express undue care and anxiety; to manifest
   disquietude or pain; to be fretful; to chafe; as, the child
   worries; the horse worries.
   

3. \Wor"ry\, n.; pl. {Worries}.
   A state of undue solicitude; a state of disturbance from care
   and anxiety; vexation; anxiety; fret; as, to be in a worry.
   ``The whir and worry of spindle and of loom.'' --Sir T.
   Browne.