ail (n.)
- ache
- anguish
- bite
- bother
- burn
- chafe
- concern
- cut
- distress
- fester
- fret
- gall
- grate
- grimace
- grind
- gripe
- harrow
- hurt
- inconvenience
- irk
- martyr
- nip
- pain
- pierce
- pinch
- plague
- pother
- pound
- prick
- puzzle
- rack
- rasp
- rub
- shoot
- shrink
- smart
- stab
- sting
- thrill
- throb
- tingle
- torment
- torture
- trouble
- try
- tweak
- twinge
- twist
- twitch
- upset
- vex
- wince
- worry
- wound
- wring
ail (v.)
- ache
- afflict
- agonize
- anguish
- beset
- bite
- blanch
- blench
- bother
- burn
- chafe
- concern
- convulse
- crucify
- cut
- discommode
- distress
- disturb
- excruciate
- fester
- fret
- gall
- gnaw
- grate
- grimace
- grind
- gripe
- harass
- harrow
- hurt
- inconvenience
- inflame
- irk
- irritate
- lacerate
- martyr
- martyrize
- nip
- pain
- perplex
- perturb
- pierce
- pinch
- plague
- pother
- pound
- prick
- puzzle
- rack
- rankle
- rasp
- rub
- shoot
- shrink
- smart
- stab
- sting
- suffer
- thrill
- throb
- tingle
- torment
- torture
- trouble
- try
- tweak
- twinge
- twist
- twitch
- upset
- vex
- wince
- worry
- wound
- wring
- writhe
