aching (n.)
- ache
 - achy
 - angina
 - backache
 - bellyache
 - blow
 - cephalalgia
 - chilblains
 - chill
 - chilliness
 - chilling
 - colic
 - collywobbles
 - cramp
 - creeps
 - cryopathy
 - cut
 - distress
 - dolor
 - earache
 - fret
 - frostbite
 - gooseflesh
 - grief
 - gripe
 - gripes
 - hankering
 - headache
 - heartburn
 - hemicrania
 - homesickness
 - honing
 - horripilation
 - hurt
 - hurting
 - injury
 - kibe
 - lesion
 - longing
 - megrim
 - migraine
 - nostalgia
 - odontalgia
 - otalgia
 - pain
 - pang
 - passion
 - pining
 - pyrosis
 - shivering
 - shock
 - sore
 - spasm
 - stomachache
 - stress
 - stroke
 - suffering
 - throes
 - toothache
 - wound
 - wrench
 - yearning
 - yen
 
aching (adj.)
What peaceful hours I once enjoy'd!
How sweet their memory still!
But they have left an aching void
The world can never fill.