Meaning : Surround so as to force to give up.
Example :
The Turks besieged Vienna.
Synonyms : beleaguer, circumvent, hem in, surround
Meaning : Cause to feel distressed or worried.
Example :
She was besieged by so many problems that she got discouraged.
Meaning : Harass, as with questions or requests.
Example :
The press photographers besieged the movie star.