Word parts

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post + -al

Pronunciation

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Adjective

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Positive
postal

Comparative
none

Superlative
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  1. The postal system, postal workers, the postal code, etc., relate to the mail system or the sending of letters and packages.
    The postal service delivers mail every day.
  2. (informal) (US) If someone goes postal, they become very angry or violent.
    He almost went postal when he heard about the delay.
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