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zero
This term functions as a mathematical absolute and a conceptual void. When used as a noun to describe a person, it carries a heavy negative connotation of worthlessness or social invisibility, stripping the individual of their value. As a verb, the word shifts from a state of nothingness to a state of precision. Whether resetting a scale or focusing attention via the phrasal verb zero in, the emphasis is on eliminating distractions or errors to reach a precise starting point or target.
Meanings
The numerical digit 0; the number that represents nothing.
"The temperature dropped to zero degrees Celsius."
A point of reference from which measurements are made.
"The starting line serves as the zero for the race."
A person or thing that is considered insignificant or a failure.
"After the scandal, he was treated as a complete zero in the industry."
To adjust an instrument so that it reads zero when there is no input.
"The technician had to zero the scale before weighing the sample."