auxilio
aid
noun owk-SEE-lyoh Rare
Origin: From Latin auxilium (help, support).
Also means
help
Usage Note
Auxilio is a more formal or emphatic word for help than ayuda; it often appears in emergency contexts. The phrase ¡Auxilio! is a cry for help, equivalent to 'Help!' The compound primeros auxilios means 'first aid'.
Examples
"Pidió auxilio al ver el accidente."
Natural Translation
He called for help when he saw the accident.

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