poundage vs internment

poundage and internment both are nouns.

Word	Noun	Adjective	Verb	Adverb
poundage	Yes	No	No	No
internment	Yes	No	No	No

As nouns, poundage and internment are synonyms defined as:

poundage and internment: placing private property in the custody of an officer of the law

Other synonyms of poundage include impounding, impoundment.

poundage (noun)	internment (noun)
placing private property in the custody of an officer of the law	the act of confining someone in a prison (or as if in a prison)
weight expressed in pounds	placing private property in the custody of an officer of the law
a fee charged for the recovery of impounded animals	confinement during wartime
a charge based on weight measured in pounds