SMOOTHLY

[adverb]Oil is used to make the parts of a machine move smoothly when they rub together.The road was blocked for two hours after the accident, but traffic is now flowing smoothly again.Lead is added to fuel to make car engines run more smoothly.It's wonderful to work in such a smoothly-run office.The pregnancy's gone very smoothly so far.If all goes smoothly, we should arrive by nine o'clock.