Learn how to say Grille correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word grille:
a grating or screen of metal bars or wires, placed in front of something as protection or to allow ventilation or discreet observation:
I looked through the grille into the church
a radiator grille
a security grille
mid 17th century: from French, from medieval Latin, craticula, diminutive of cratis ‘hurdle’; related to crate, grate2, and griddle