For the purposes of this subchapter—

(1) the term “beneficiary” means an individual (other than a participant) entitled to payment from the Thrift Savings Fund under subchapter III of this chapter;

(2) the term “Council” means the Employee Thrift Advisory Council established under section 8473 of this title;

(3) the term “participant” means an individual for whom an account has been established under section 8439 of this title;

(4) the term “person” means an individual, partnership, joint venture, corporation, mutual company, joint-stock company, trust, estate, unincorporated organization, association, or labor organization; and

(5) the term “Thrift Savings Fund” means the Thrift Savings Fund established under section 8437 of this title.