1) Thing that may be on a house 
A tax lien is a lien imposed by law upon a property to secure the payment of taxes. A tax lien may be imposed for delinquent taxes owed on real property or personal property, or as a result of failure to pay income taxes or other taxes. ==Federal tax lien in the United States== In the United States, a federal tax lien may arise in connection with ...
The right of the government to enforce a claim against the property of a person owing taxes.
Is a lien placed against a property for nonpayment of taxes. 
The amount in taxes a taxpayer to the government.
The right of a tax authority to claim assets belonging to a company or individual who default on tax payments
[n] - lien of which a tax collector may avail himself in default of taxes (analogous to a judgment lien)
noun lien of which a tax collector may avail himself in default of taxes (analogous to a judgment lien)
- ENCUMBRANCE placed on property as security for unpaid taxes.
Lien for nonpayment of taxes.