This is the 7573rd most frequent German word.
grill
A device for cooking food over direct heat or an outdoor barbecue.
Here, 'Grill' is used as a noun referring to an outdoor cooking device.
Ich habe einen neuen Grill für den Garten gekauft.
I bought a new grill for the garden.
In this instance, 'grillen' is the verb form, meaning 'to grill' or 'to barbecue' food.
Wir grillen oft Fleisch und Gemüse im Sommer.
We often grill meat and vegetables in the summer.
'Grillmeister' incorporates 'Grill' as part of a compound noun, indicating a person specialized in grilling food.