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PST

abbr

Definition of PST

Pacific standard time

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PST

PST

Definition of PST

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PST

PST

Definition of PST

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Seen & Heard

Test Your Vocabulary

Name That Thing

True or False?

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Get Our Free Apps

The Merriam-Webster

Unabridged Dictionary

Learning English?

We can help.

Our Dictionary,On Your Devices

Visit Our Store

Join Us

Bookstore: Digital and Print

Other Merriam-Webster Dictionaries

Our Dictionary,
On Your Devices