abandonment

ot noun

1. The voluntary leaving of a person to whom one is bound by a special relation, as a wife, husband or child; desertion. Since he left her, she's suing him for divorce on grounds of abandonment.
2. An abandoned building or structure. High-profile abandonments are harder to infiltrate for urban explorers due to their heightened security.
3. The act of abandoning, or the state of being abandoned; total desertion; relinquishment.
4. The relinquishment of a right, claim, or privilege; relinquishment of right to secure a patent by an inventor; relinquishment of copyright by an author.