Entry 2 senses · 2 variants Webster, 1913 Planch · IPA /plænt͡ʃ/ n. v. t. 01 n. A plank. 1. A plank.[Obs.] 02 v. t. To make or cover with planks or boards; to plank. imp. & p. p. Planched; p. pr. & vb. n. Planching 1. To make or cover with planks or boards; to plank.[Obs.]