The difference between Previously and Prior
When used as adverbs, previously means at an earlier time, whereas prior means previously.
Prior is also noun with the meaning: a high-ranking member of a monastery, usually lower in rank than an abbot.
Prior is also adjective with the meaning: advance.
check bellow for the other definitions of Previously and Prior
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Previously as an adverb:
At an earlier time.
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Prior as an adjective:
Advance; previous; coming before.
Examples:
"I had no prior knowledge you were coming."
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Prior as an adjective:
Former, previous.
Examples:
"His prior residence was smaller than his current one."
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Prior as an adverb (colloquial):
Previously.
Examples:
"The doctor had known three months prior."
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Prior as a noun:
A high-ranking member of a monastery, usually lower in rank than an abbot.
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Prior as a noun (historical):
A chief magistrate in Italy.
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Prior as a noun (US, law enforcement):
A previous arrest or criminal conviction on someone's record.
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Prior as a noun (statistics):
In Bayesian inference, a prior probability distribution, one based on information or belief before additional data is collected.