reserva is feminine in Spanish.
reservation, booking (arrangement by which accommodation or transport arrangements are secured in advance); a reserve, reservation, preserve, sanctuary (area protected for a specific reason); reserve (for game or hunting); reserve (armed forces in non-active duty); reserve (part of the team that doesn't start)
“Los agentes de viajes cancelaron todas las reservas para el vuelo de la tarde.” — The travel agents canceled all reservations for the afternoon flight.
Synonyms: reservación, advertencia
Etymology tree Proto-Italic *wre- Latin re- Proto-Indo-European *ser-der.? Proto-Italic *serwos Latin servus Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Indo-European *-h₂tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ō Latin servō Latin reservārebor. Spanish reservardeverb. Spanish reserva Deverbal from reservar.