* Without obstacles: This could refer to physical barriers, but also to metaphorical ones like prejudices, limitations, or restrictions.
* Openly: This can indicate a free and uninhibited expression of feelings, thoughts, or actions.
* Accessible: This can relate to making something available or approachable to everyone.
The precise meaning of "sin barrera" will depend on the context in which it is used.
Here are some examples:
* "Música sin barrera" could mean "Music without limits" or "Music for everyone."
* "Vivir sin barrera" could mean "Living without restrictions" or "Living an unhindered life."
* "Comunicación sin barrera" could mean "Communication without barriers" or "Open and accessible communication."
To get a better understanding of the intended meaning, you need to consider the full sentence or passage where "sin barrera" is used.