(1) the term `Congressional election' means a general or special election for the office of Representative in, or Delegate or Resident Commissioner to, the Congress;
(2) the term `State' means a State of the United States, the District of Columbia, the Commonwealth of Puerto Rico, and any other territory or possession of the United States;
(3) the term `individual' means an individual who has the qualifications required by law of a person who holds the office for which such individual seeks to be a candidate;
(4) the term `petition' includes a petition which conforms to section 2(a)(1) and upon which signers' addresses and/or printed names are required to be placed;
(5) the term `signer' means a person whose signature appears on a petition and who can be identified as a person qualified to vote for an individual for whom the petition is circulated, and includes a person who requests another to sign a petition on his or her behalf at the time when, and at the place where, the request is made;
(6) the term `signature' includes the incomplete name of a signer, the name of a signer containing abbreviations such as first or middle initial, and the name of a signer preceded or followed by titles such as `Mr.', `Ms.', `Dr.', `Jr.', or `III'; and
(7) the term `address' means the address which a signer uses for purposes of registration and voting.