zero
... ... in German => null => lex
In arithmetcis
Zero means: nothing, nil. The plural is zeros: the number 200 has two zeros at the end. One can sometimes find the word "zeroes". That is usually used as a verb meaning to put to zero. Example: When she zeroed the counter, all the digits went back to zero.
In algebra
Zero here means the place where a line or another graph intersects the x-axis. This translates inton the German => Nullstelle => lex