Nett means nice
"Der ist nett, nicht?" would mean "He/This guy is nice/friendly, isn't he?" "Der ist nicht nett" (different grammar) would mean "He/this guy isn't nice/friendly".
Sie ist nett aber ein bißchen gemein
You are nice. = Du bist nett.
Du bist unsympathisch.orDu bist nicht nett
If you wanna know how to say you were so cute in German its sie warren so nett hope this helps
Nice to meet you
It is "they are not nice".
Ich will Sie, nett zu seinMeans i want you to be nice
Nett Monthly Account - Payment due on last day of the month following the one in which the invoice is dated
This term indicates that the seller expects you to pay within 7 days, and the nett part means that there is no discount.
du bist süß weil du nett bist
That's a nice name = Das ist ein schöner Name