to  look  down one's nose at  somebody or something
look
lʊk
look
down
daʊn
dawn
<i>one's</i>
wʌnz
vanz
nose
nəʊz
newz
at
æt
āt
somebody or something
sʌmbədi
sambēdi

Definition & Meaning of "look down one's nose at somebody or something "in English

to look down one's nose at somebody or something
01

to consider a person or thing unimportant and undeserving of respect 

to [look] down {one's} nose at {sb/sth} definition and meaning
Disapproving
Idiom
Informal

What is the origin of the idiom "look down one's nose at someone or something" and when to use it?

The idiom "look down one's nose at someone or something" likely originated from the physical action of raising one's nose, which is associated with an arrogant or narcissistic attitude. This expression is used to imply the person exhibiting this behavior believes themselves to be superior to the person or thing they are looking down upon.

Examples
She looked down her nose at anyone who did not go to a famous university. 
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