free from worries or problems
libre de preocupaciones o problemas (libre de preocupaciones o problemas)
"The kids were playing without a care in the world."
"Los niños estaban jugando sin ninguna preocupación en el mundo." (Los niños estaban jugando **sin ninguna preocupación en el mundo**.)
used to say that you forgive someone
to collaborate with someone for a common goal
an older brother or someone who behaves protectively
to use a political issue to one’s advantage
A pessimistic attitude or perspective
A small-scale experiment to test a concept.