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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

abstraction, abstract entity go
a general concept formed by extracting common features from specific examples

communication go
something that is communicated by or to or between people or groups

sign, signal, signaling go
any nonverbal action or gesture that encodes a message

symbol go
an arbitrary sign (written or printed) that has acquired a conventional significance

variable
a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity

noun.communication

2 Subcategories

placeholder go
a symbol in a logical or mathematical expression that can be replaced by the name of any member of specified set
unknown, unknown quantity go
a variable whose values are solutions of an equation