Nouns

(n)ache, achinga dull persistent (usually moderately intense) pain

Verbs

(v)ache, yearn, yen, pine, languishhave a desire for something or someone who is not present“She ached for a cigarette”, “I am pining for my lover”
(v)ache, smart, hurtbe the source of pain
(v)suffer, hurt, achebe in pain