This is the 16562nd most frequent Russian word.
свободный
Free.
Here, 'свободное' refers to 'free' in the context of 'available or unoccupied', indicating extra time or availability.
У меня сегодня свободное время.
I have free time today.
In this sentence, 'свободный' means 'free' in the sense of 'not constrained by obligations', referring to someone working independently.
Этот человек – свободный художник.
This person is a freelancer.
Here, 'свободно' is the adverb form of 'свободный', and it indicates the concept of freedom or lack of restriction in expressing oneself.