sever

verb
1
to cut something into two pieces; to cut something off something
بریدن, قطع کردن, جدا کردن, دو نیم کردن
2
to completely end a relationship or all communication with somebody
قطع کردن, گسستن, بی ارتباط شدن
The two countries have severed all diplomatic links.
She has severed all contact with her family.
synonym break off