(1):

(a.) Serving to form, compose, or make up; elemental; component.

(2):

(a.) Having the power of electing or appointing.

(3):

(n.) A person who appoints another to act for him as attorney in fact.

(4):

(n.) The person or thing which constitutes, determines, or constructs.

(5):

(n.) That which constitutes or composes, as a part, or an essential part; a component; an element.

(6):

(n.) One for whom another acts; especially, one who is represented by another in a legislative assembly; - correlative to representative.