The term 'stick one's nose (in)' can be summarized by three crossword solutions: PRY, MEDDLE, and SNOOP. To 'PRY' means to attempt to obtain information or gain access to something that is not readily available. To 'MEDDLE' is to interfere in the affairs of others without permission. To 'SNOOP' is to search for information or observe someone without their knowledge. All three words refer to the act of sticking one's nose into something that is not one's business.