1. To be not restricted, controlled, or limited. English = (be) free.
2. To be able to do something at a certain time because you are not or will not be doing anything else. English = (be) free, (be) available.
3. To have left your job and to have stopped working altogether, usually because of age. English = (be) retired.
4. To do nothing physically or mentally active for a period of time. English = rest, relax. Idiomatic English = have a break.