puntilla2

² = killer blow, death blow.

Ex. Three times she tracked him down and fought him, only to be thwarted as he somehow evaded her killer blow and disappeared into the night.

Ex. Another employee said the plant's closure would be the death blow for the entire region.

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* dar la puntilla a = put + an end to, bring + an end to, bring to + an end.

* la puntilla = the final/last nail in + Posesivo + coffin.