Definition.com
Event (n.) are for biblical man what axioms are for a surveyor: the givens he measures everything else by.
Definition.com
An Event (n.) is mystery travelling under an alias: something that happened and fits no process, forecast or full explanation.
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An Event (n.) is a one-off that sets a precedent, where a process is a repeat that obeys a law.
Definition.com
An Event (n.) sets a precedent, where a process follows a law; one is unique, the other typical.
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An Event (n.) cannot be cut down to a step in a process; it can be neither predicted nor fully explained.