How to Say "killing sword" in Spanish
The Spanish word for “killing sword” is “espada” — B2 level.
English → SpanishB2
nounB2neutral / formal (bullfighting jargon)
the specific weapon used by the matador for the final thrust

Examples
El torero entró con la espada para finalizar la faena.
The bullfighter entered with the sword to conclude the final act.
La estocada se realiza con la espada de matar.
The final thrust (estocada) is performed with the killing sword.
Word Association
In bullfighting, the bullfighter (matador) sometimes gets called 'espada' in older texts or very specific contexts, taking the name of their tool. However, it's best to stick to 'matador' or 'torero' for the person.
Learn Spanish with Inklingo
Interactive stories, personalized learning, and more.