If you mean virginity by the fact your hymen is broken then yes, it can be broken by fingers. But the definition of virginity is the state of a person who has never engaged in sexual intercourse.
There are cultural and religious traditions which place special value and significance on this state, especially in the case of unmarried females, associated with notions of personal purity, honor and worth.
Just remember, you loose it forever after one time and some do not marry unless the female is a virgin.