sting vs ache

sting and ache both are nouns.

Word	Noun	Adjective	Verb	Adverb
sting	Yes	No	Yes	No
ache	Yes	No	Yes	No

As verbs, ache is a hypernym of sting; that is, ache is a word with a broader meaning than sting:

Other hypernyms of sting include hurt, suffer.

As verbs, ache is a hypernym of sting; that is, ache is a word with a broader meaning than sting:

Other hypernyms of sting include hurt, smart.

sting (noun)	ache (noun)
a swindle in which you cheat at gambling or persuade a person to buy worthless property	a dull persistent (usually moderately intense) pain
operation designed to catch a person committing a criminal act
a kind of pain; something as sudden and painful as being stung
a painful wound caused by the thrust of an insect's stinger into skin
a mental pain or distress

sting (verb)	ache (verb)
saddle with something disagreeable or disadvantageous	have a desire for something or someone who is not present
deliver a sting to	be the source of pain
cause an emotional pain, as if by stinging	feel physical pain
cause a stinging pain
cause a sharp or stinging pain or discomfort