(of surface) level or polished, like glass; calm and free from uncomfortable movement; (of a liquid mixture) free from lumps
level, unwrinkled; flowing
Cases of word usage
1) (the wood of) a kind of forest tree with a smooth bark and thin branches (birch)
2) smooth and level; even (flat)
3) an area of grass cut short and smooth (lawn)
4) a cooked mixture of (especially) liver, chicken and flavouring in a smooth paste (pate)
5) a small stone made smooth and round by water (pebble)
6) a sound (as if) of a small smooth object dropping into water without a splash (plop)
7) a substance used for polishing a surface; (to cause the surface of something) to become smooth and shiny by rubbing (especially with a special substance) (polish)
8) a long-handled tool with prongs, used for pulling together dead leaves, moving soil etc; an immoral man; to make (land) smooth with a rake (rake)
9) (of surfaces) not level, smooth or polished; not calm, with uncomfortable movements; not gentle; acting violently (rough)
10) (of surfaces) not level, smooth or polished; about (roughly)