This is the 7623rd most frequent German word.
gruß
Greeting.
Here, 'Gruß' is used as a singular noun to denote a greeting expressed warmly.
Ich sende dir einen herzlichen Gruß.
I send you a heartfelt greeting.
In this sentence, 'Gruß' specifically describes a type of greeting characterized by brevity and formality.
Sein Gruß war kurz und förmlich.
His greeting was brief and formal.
'Grüße' is used in the plural form to express multiple greetings, often used in correspondence to convey good wishes.