1 : smoothly agreeable and courteous with a degree of sophistication; "he was too politic to quarrel with so important a personage"; "the manager pacified the customer with a smooth apology for the error"
2 : smooth and unconstrained in movement; "a long, smooth stride"; "the fluid motion of a cat"; "the liquid grace of a ballerina"
verbe
1 : free from obstructions
nom
1 : the act of smoothing
adjectif
1 : without chinks or crannies
2 : having a surface free from roughness or bumps or ridges or irregularities
3 : of motion that runs or flows or proceeds without jolts or turbulence