This is the 12201st most frequent Spanish word.
inyección
Injection.
Here, 'inyección' is used in a medical context to refer to a shot or injection administered for health purposes.
Recibí una inyección contra la gripe en el hospital.
I received a flu shot at the hospital.
In this sentence, 'inyección' metaphorically represents the introduction of resources (capital) into the business for its growth.
La inyección de capital ayudó a la empresa a expandirse rápidamente.
The injection of capital helped the company to expand rapidly.
Here, 'inyección' refers to a technical process involving the introduction of a substance (oil) into a machine (the car engine).