smooth

adjective

1. 1. having an even or level surface; having no roughness or projections that can be seen or felt
   2. having its projections leveled by wear: a smooth tire
2. having an even consistency; without lumps: a smooth paste
3. even, calm, or gentle in flow or movement: a smooth voyage
4. free from interruptions, obstacles, difficulties, etc.: smooth progress
5. not easily agitated or ruffled; calm; serene: a smooth temper
6. free from hair, beard, etc.
7. pleasing to the taste; not sharp or harsh; bland
8. having an easy, gentle, flowing rhythm or sound
9. ☆ suave, polished, or ingratiating, esp. in a flattering, insincere way
10. ☆ Informal polished; competent: a smooth dancer
11. Slang very pleasant, attractive, or enjoyable
12. Mech. having relatively little friction
13. Phonet. articulated without aspiration

transitive verb

1. to make level or even
2. to remove the lumps from
3. to remove wrinkles from by pressing
4. to free from interruptions, difficulties, etc.; make easy
5. to make calm or serene; soothe
6. to make less crude; polish or refine

intransitive verb

adverb

noun

1. something smooth; smooth part
2. an act of smoothing