In this Part –

claim includes a counterclaim and a cross-application;

contribution claim means a claim to recover contribution from, or indemnity against, any person;

defendant includes –

(a) a respondent to an originating application; and

(b) a defendant by counterclaim; and

(c) a respondent by cross-application;

plaintiff includes –

(a) an applicant by originating application; and

(b) a defendant who has filed and served a counterclaim; and

(c) a respondent who has filed and served a cross-application.