Entry 3 senses · 2 variants Webster, 1913 Popple /päp'-əl/ · Pop·ple · IPA /ˈpɒpl̩/ v. i. n. 01 v. i. To move quickly up and down; to bob up and down, as a cork on rough water; also, to bubble. 1. To move quickly up and down; to bob up and down, as a cork on rough water; also, to bubble. 02 n. The poplar. 1. The poplar.[Prov. Eng. & Local, U. S.] 2. Tares.[Obs.]