free

adjective:not under the control or in the power of another; able to act or be done as one wishes
- After years of struggle, the country was finally free.
adjective:without cost or payment
- They offered free drinks to all the guests.
adjective:not physically restrained, obstructed, or fixed; unimpeded
- She let her hair flow free in the wind.
adjective:open, unrestricted, or unregulated; allowing expression or access
- The university promotes a free exchange of ideas among its students.
verb:to release from captivity, confinement, or slavery
- The activists worked to free the animals from the laboratory.
verb:to make something available; to rid of something undesirable
- Cleaning the drain will free the pipe from the clog.
adjective:having no obligations or commitments; available for use
- I have a free weekend, so we can go hiking.