turn down vs pooh-pooh

turn down and pooh-pooh both are verbs.

Word	Noun	Adjective	Verb	Adverb
turn down	No	No	Yes	No
pooh-pooh	No	No	Yes	No

As verbs, turn down and pooh-pooh are synonyms defined as:

Other synonyms of turn down include disdain, freeze off, reject, scorn, spurn.

turn down (verb)	pooh-pooh (verb)
make lower or quieter	reject with contempt
take a downward direction	express contempt about
reject with contempt
not accept as true
refuse entrance or membership