No. They could be synonyms.
yes, busy as in always getting into EVERYONE else's business
Nosy busy-body (female)
A busybody or meddler is often used to describe someone who is overly nosy and intrusive in the affairs of others.
If they are nosy, it is impolite, but not mean. If they aren't actually nosy, then yes, it is mean.
No, "nosy" is an adjective used to describe someone who is overly curious or prying. It is not a verb.
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Nosy-Poniatki's population is 150.
The population of Nosy Ambositra is 7,000.
Nosy - album - was created in 2004.
Nosy Mangabe was created in 1965.
Nosy Crow was created in 2010.
nosy means the person who checks whatever you do