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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

indication, indicant go
something that serves to indicate or suggest

mark, print go
a visible indication made on a surface

line go
a mark that is long relative to its width

spectrum line
an isolated component of a spectrum formed by radiation at a uniform frequency

noun.communication

1 Subcategories

fine structure go
the presence of groups of closely spaced spectrum lines observed in the atomic spectrum of certain elements