The Word 'ACHE'

Ache (noun)

definition:
a dull, persistent, moderately intense pain

example:
"After a night of heavy drinking, I have quite an ache in my head."

Ache (verb)

definition:
to have a desire for something or someone who is not present

example:
"I ached for a cigarette for weeks after I quit."

Ache (verb)

definition:
to feel physical pain

example:
"After a tough work-out, my body ached."

Ache (verb)

definition:
to be the source of pain

example:
"My back aches."