torment

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Great physical pain or mental anguish.
2. n. A source of harassment, annoyance, or pain.
3. n. The torture inflicted on prisoners under interrogation.
4. v. To cause to undergo great physical pain or mental anguish. See Synonyms at afflict.
5. v. To agitate or upset greatly.
6. v. To annoy, pester, or harass.

Century Dictionary and Cyclopedia

1. n. An engine of war for casting stones, darts, or other missiles; a tormentum.
2. n. An instrument of torture, as the rack, the thumbscrew, or the wheel; also, the application of such an instrument, or the torture caused by it.
3. n. Hence, anything which causes great pain or suffering; a source of trouble, sorrow, or anguish.
4. n. A state of suffering, bodily or mental; misery; agony.
5. n. An object of torture; a victim.
6. n. A tempest; a tornado.
7. n. Synonyms Anguish, Torture, etc. See agony.
8. To put to torment, as with the rack or the wheel; torture.
9. To bring suffering or misery upon; pain; plague; distress; afflict.
10. To twist; distort.
11. To throw into agitation; disturb greatly.
12. Synonyms To agonize, rack, excruciate.
13. Plague, Worry, etc. (See tease.) Trouble, Distress, etc. See afflict.

Wiktionary

1. n. obsolete A catapult or other kind of war-engine.
2. n. Torture, originally as inflicted by an instrument of torture.
3. n. Any extreme pain, anguish or misery, either physical or mental.
4. v. transitive To cause severe suffering to (stronger than to vex but weaker than to torture.)

GNU Webster's 1913

1. n. (Mil. Antiq.), obsolete An engine for casting stones.
2. n. Extreme pain; anguish; torture; the utmost degree of misery, either of body or mind.
3. n. That which gives pain, vexation, or misery.
4. v. To put to extreme pain or anguish; to inflict excruciating misery upon, either of body or mind; to torture.
5. v. To pain; to distress; to afflict.
6. v. colloq. To tease; to vex; to harass.
7. v. rare To put into great agitation.

WordNet 3.0

1. n. extreme mental distress
2. n. a feeling of intense annoyance caused by being tormented
3. n. intense feelings of suffering; acute mental or physical pain
4. v. treat cruelly
5. v. subject to torture
6. n. a severe affliction
7. v. torment emotionally or mentally
8. n. the act of harassing someone
9. n. unbearable physical pain