Sei″zin (?), n. [F. saisine. See Seize.] 1. (Law) Possession; possession of an estate of froehold. It may be either in deed or in law; the former when there is actual possession, the latter when there is a right to such possession by construction of law. In some of the United States seizin means merely ownership. Burrill.
2. The act of taking possession.
3. The thing possessed; property. Sir M. Halle.
☞ Commonly spelt by writers on law seisin.
Livery of seizin. (Eng. Law) See Note under Livery, 1.