dampen vs bottle up

dampen and bottle up both are verbs.

Word	Noun	Adjective	Verb	Adverb
dampen	No	No	Yes	No
bottle up	No	No	Yes	No

As verbs, bottle up is a hypernym of dampen; that is, bottle up is a word with a broader meaning than dampen:

dampen: suppress or constrain so as to lessen in intensity
bottle up: consciously restrain from showing; of emotions, desires, impulses, or behavior

Other hypernyms of dampen include inhibit, suppress.

dampen (verb)	bottle up (verb)
lessen in force or effect	consciously restrain from showing; of emotions, desires, impulses, or behavior
make moist
check; keep in check (a fire)
make vague or obscure or make (an image) less visible
reduce the amplitude (of oscillations or waves)
suppress or constrain so as to lessen in intensity
deaden (a sound or noise), especially by wrapping