Your sister is someone who always stands by your side. She may be related to you or just a friend. A sister is always quick to forgive and will always love you. Even when you do something wrong, she will never let you down. Having a sister like this is a great gift. Here are some ways to be a better sister.
A sister is a female sibling, who shares the same parents and is a member of the same family. Sisters can be younger or older, or be in the same religion or sorority. Some examples include twin sisters Ashley Olsen and Mary-Kate Olsen, who played twin Michelle Tanner on the popular sitcom Full House.
Nuns live a cloistered life and devote their time to prayer, while sisters are more active. Some sisters run hospitals, care for the poor, and teach classes. In contemporary English, the word “sister” is not usually used for biological sisters, but it is still used in religious contexts and in poetic usage.