worry

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To feel uneasy or concerned about something; be troubled. See Synonyms at brood.
2. v. To pull or tear at something with or as if with the teeth.
3. v. To proceed doggedly in the face of difficulty or hardship; struggle: worried along at the problem.
4. v. To cause to feel anxious, distressed, or troubled. See Synonyms at trouble.
5. v. To bother or annoy, as with petty complaints.
6. v. To seize with the teeth and shake or tug at repeatedly: a dog worrying a bone.
7. v. To attack roughly and repeatedly; harass.
8. v. To touch, move, or handle idly; toy with: worrying the loose tooth with his tongue.
9. n. The act of worrying or the condition of being worried; persistent mental uneasiness. See Synonyms at anxiety.
10. n. A source of nagging concern or uneasiness.
11. idiom. not to worry Informal There is nothing to worry about; there is no need to be concerned: "But not to worry: it all...falls into place in the book's second half, where the language is plainer” ( Hallowell Bowser).

Century Dictionary and Cyclopedia

1. To choke; suffocate.
2. To seize by the throat with the teeth; bite at or tear with the teeth, as dogs when fighting; kill or injure badly by repeated biting, tearing, shaking, etc.: as, a dog that worries sheep; a terrier worries rats.
3. To tease; trouble; harass with importunity or with care and anxiety; plague; bother; vex; persecute.
4. Synonyms Pester, Plague, etc. (see tease), disturb, disquiet.
5. To choke; be suffocated, as by something stopping the windpipe.
6. To fight, as dogs, by seizing and biting at each other; be engaged in biting, shaking, or mangling with the teeth.
7. To be unduly anxious and careful; give way to anxiety; be over-solicitous or disquieted about things; borrow trouble; fret.
8. n. The act of worrying or biting and mangling with the teeth; the act of killing by biting and shaking.
9. n. Harassing anxiety, solicitude, or turmoil; perplexity arising from over-anxiety or petty annoyances and cares; trouble: as, it is not work but worry that kills; the worries of housekeeping.

Wiktionary

1. v. transitive To seize or shake by the throat, especially of a dog or wolf.
2. v. transitive To harass; to irritate or distress.
3. v. transitive Disturb the peace of mind of; afflict with mental agitation or distress.
4. v. intransitive To be troubled, to give way to mental anxiety.
5. v. transitive, obsolete, except in Scots To strangle.
6. n. A strong feeling of anxiety.
7. n. An instance or cause of such a feeling.

GNU Webster's 1913

1. v. To harass by pursuit and barking; to attack repeatedly; also, to tear or mangle with the teeth.
2. v. 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.
3. v. colloq. To harass with labor; to fatigue.
4. v. To feel or express undue care and anxiety; to manifest disquietude or pain; to be fretful; to chafe
5. n. A state of undue solicitude; a state of disturbance from care and anxiety; vexation; anxiety; fret.

WordNet 3.0

1. v. touch or rub constantly
2. v. lacerate by biting
3. v. disturb the peace of mind of; afflict with mental agitation or distress
4. n. something or someone that causes anxiety; a source of unhappiness
5. v. be concerned with
6. v. be worried, concerned, anxious, troubled, or uneasy
7. n. a strong feeling of anxiety
8. v. be on the mind of