void — Law. having no legal force or effect; not legally binding or enforceable.
imprisonment — to confine in or as if in a prison.
incarceration — the act of incarcerating, or putting in prison or another enclosure: The incarceration rate has increased dramatically.
limitation — a limiting condition; restrictive weakness; lack of capacity; inability or handicap: He knows his limitations as a writer.
restraint — a restraining action or influence: freedom from restraint.
restriction — something that restricts; a restrictive condition or regulation; limitation.
fraction — Mathematics. a number usually expressed in the form a/b. a ratio of algebraic quantities similarly expressed.
part — a portion or division of a whole that is separate or distinct; piece, fragment, fraction, or section; constituent: the rear part of the house; to glue the two parts together.