The word for today is…
null (adjective, noun, verb) -
adjective
1: having no legal or binding force : invalid
2: amounting to nothing : nil
3: having no value : insignificant
4a: having no elements
b: having zero as a limit
c of a matrix : having all elements equal to zero
5a: indicating usually by a zero reading on a scale when a given quantity (such as current or voltage) is zero or when two quantities are equal — used of an instrument
b: being or relating to a method of measurement in which an unknown quantity (as of electric current) is compared with a known quantity of the same kind and found equal by a null detector
6: of, being, or relating to zero
7: zero
noun
1: zero
2a: a condition of a radio receiver when minimum or zero signal is received
b: a minimum or zero value of an electric current or of a radio signal
verb
: to make null
Source : Merriam-Webster
Etymology : Let’s be honest: null is kind of a nothing word. That’s not a judgment—it was literally borrowed into English from the Anglo-French word nul, meaning "not any." That word, in turn, traces to the Latin word nullus, from ne-, meaning "not," and ullus, meaning "any." Null often pops up in legal and scientific contexts; it was originally used in Scottish law and still carries the meaning "having no legal or binding force," especially in the phrase "null and void." In mathematics, it is sometimes used to mean "containing nothing"; for example, the set of all whole numbers that are divisible by zero is the "null set" (that is, there are no numbers that fit that description). Null is occasionally seen in non-technical contexts with the meaning "lacking meaning or value," as in "if no one reads it, the book's content is null."
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