1. (superl.) Having an even surface, or a surface so even that no roughness or points can be perceived by the touch; not rough; as, smooth glass; smooth porcelain.

2. (superl.) Evenly spread or arranged; sleek; as, smooth hair.

3. (superl.) Gently flowing; moving equably; not ruffled or obstructed; as, a smooth stream.

4. (superl.) Flowing or uttered without check, obstruction, or hesitation; not harsh; voluble; even; fluent.

5. (superl.) Bland; mild; smoothing.

6. (superl.) Causing no resistance to a body sliding along its surface; frictionless.

7. (adv.) Smoothly.

8. (n.) The act of making smooth; a stroke which smoothes.

9. (n.) That which is smooth; the smooth part of anything.

10. (v.) To make smooth; to make even on the surface by any means; as, to smooth a board with a plane; to smooth cloth with an iron.

11. (v.) To free from obstruction; to make easy.

12. (v.) To free from harshness; to make flowing.

13. (v.) To palliate; to gloze; as, to smooth over a fault.

14. (v.) To give a smooth or calm appearance to.

15. (v.) To ease; to regulate.

16. (v. i.) To flatter; to use blandishment.