plaining / planing [pleinɪŋ]
plaining – adj. n. & v. – adj. – expressing a grievance on some level; n. – 1. an expression of grief, sorrow or dissatisfaction, a lamentation; v. – pres. ppl of the verb plain, making a formal grievance
planing – adj. & n. – adj. – pertaining to gliding or skimming the surface; n. – 1. the act of making something smooth, especially with the use of tools or machinery; 2. a chip, a shaving; 3. the action of gliding