indentation

1 a sunken area forming a separate space the previous occupant's furniture had left some fairly noticeable indentations in the carpet Synonyms cavity, concavity, dent, depression, dint, hollow, hole, indenture, pit, recessRelated Words burrow, cave, cavern, ditch, excavation, furrow, groove, gutter, trench, trough; basin, bowl, valley; alcove, cleft, niche, nook, opening, recess, socket; alveolus, dimple, gouge, impression, imprint, notch, pocket; borehole, chuckhole, crater, posthole, pothole, sinkhole, wallow, water hole, well; abyss, chasm, gulf, vacuity, vacuum, voidNear Antonyms hill, mound, rise; bump, bunch, hump, lump, pimple, swell, swelling, tumorAntonyms bulge, camber, convexity, jut, projection, protrusion, protuberance

2 a V-shaped cut usually on an edge or a surface deep indentations along the edge of the leaf Synonyms chip, hack, indent, notch, indenture, kerf, nickRelated Words joggle, nock, punch, snip; groove, score, undercut; slit, slot