This article is about the abstract concept of nothing; for other meanings, see Nothing (disambiguation).

In everyday language, nothing refers to a universal abstract concept that has various aspects of meaning. However, it can be argued whether this clustering of aspects has a common linguistic source or whether some of them are homonyms that would be due to faulty handling of surface grammar rules. Different aspects are:

  • The negation particle "not" is used for the linguistic negation of statements or sentence elements.
  • The indefinite pronoun "nothing" means "not any (thing)," not a thing, not a thing, not the least thing.
  • The nominal phrase "the nothing" refers to the opposite of being, the negation and absence of being, non-being, an absolute void or general indeterminacy.
  • In formal logic, "nothing" occurs exclusively in the form of the so-called negated existential quantifier (\neg \exists x). This accounts for the fact that "nothing", unlike "the nothing", is not a proper noun or nominative. Therefore, e.g. "Nothing exists" (i.e. "It is not the case that something exists") and "The nothing exists" are by no means synonymous.
  • Moreover, the noun "nothing" can be related to:
    • Something absent whose presence was expected (nihil privativum).
    • Something insubstantial, void, intangible.
    • Something that lacks the actual content, the inner being and life, the mere "appearance".
    • Likewise, it can be used to label a person or thing as unworthy, insignificant, insubstantial, and void.

The common of substantival uses is that a determination (e.g. value) is irreducibly small or zero, or a thing whose existence or presence was expected turns out to be fictitious or absent.