Entry 3 senses · 2 variants Webster, 1913 Piling /pīl'-ĭng/ · Pil·ing · IPA /[ˈpʰaɪ̯ɫlɪŋ]/ n. n. 01 n. The act of heaping up. 1. The act of heaping up. 2. The process of building up, heating, and working, fagots, or piles, to form bars, etc.(Iron Manuf.) 02 n. A series of piles; piles considered collectively; as, the piling of a bridge. 1. A series of piles; piles considered collectively; as, the piling of a bridge. Phrases & compounds Pug piling — sheet piles connected together at the edges by dovetailed tongues and grooves. Sheet piling — a series of piles made of planks or half logs driven edge to edge, -- used to form the walls of cofferdams, etc.