Here are some examples:
* "She moved effortlessly through the crowd." - This means she moved easily and smoothly, without having to push or struggle.
* "He plays the piano effortlessly." - This means he plays with skill and grace, as if it's easy for him.
* "The car glided effortlessly down the hill." - This means the car moved smoothly and without any apparent effort.
In essence, "effortlessly" highlights the absence of struggle and implies a sense of grace and natural ability.