The fact or condition of existing or occurring together at the same time.
From Latin concomitans, present participle of concomitari (to accompany), from con- (with) + comitatus (accompanied). The term evolved from meaning 'accompanying' to referring to the state of concurrent existence.
This word is huge in philosophy and science—when we say two things show 'concomitance,' it suggests they appear together but doesn't yet prove one causes the other, which is why scientists are careful to distinguish correlation from causation.
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