How to Say "free moment" in Spanish
The Spanish word for “free moment” is “hueco” — B2 level. This is a very common word in everyday Spanish.
English → SpanishB2
nounB2
spare time

Examples
¿Tienes un hueco para tomar café mañana?
Do you have a free moment/slot to grab coffee tomorrow?
Si encuentro un hueco en mi agenda, te llamo.
If I find an opening in my schedule, I'll call you.
Figurative Use
Think of this use as a 'gap' or 'hole' in your time. It’s a very natural way to talk about availability.
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