(1):

(n.) A rough draught of a writing which precedes a finished copy.

(2):

(n.) Something done or said that may serve as an example to authorize a subsequent act of the same kind; an authoritative example.

(3):

(a.) Going before; anterior; preceding; antecedent; as, precedent services.

(4):

(n.) A judicial decision which serves as a rule for future determinations in similar or analogous cases; an authority to be followed in courts of justice; forms of proceeding to be followed in similar cases.

(5):

(n.) A preceding circumstance or condition; an antecedent; hence, a prognostic; a token; a sign.