busying,vbl.n.andppl.a.|ˈbɪzɪɪŋ| [f. busy v. + -ing.] A.vbl.n. The action of the verb busy. B.ppl. a. That makes busy. 1398Trevisa Barth. De P.R. xiv. ii. (1495) 215 a/2 Þt besyeng and Inclynacon of partyes.1656S. H. Gold. Law 58 A world of other busying performances.