Fixed expression whose literal words mean “to the best”, but whose current use marks possibility.
Fixed expression whose literal words mean “to the best”, but whose current use marks possibility.
What does a lo mejor mean?
“Maybe” or “perhaps”.
Does it mean “better”?
No. As a fixed phrase it expresses possibility.
Does it express certainty?
No, it introduces a possibility.
Can it start a sentence?
Yes, that is very common.
Is it used in conversation?
Yes, it is a natural everyday expression.