Understanding the meaning of 1st class - BoostVocab

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1st class

Synonyms of 1st class Antonyms of 1st class Examples of 1st class Usage of 1st class Parts of 1st class Definition that contains 1st class Words sounding like 1st class Explanation of 1st class

noun
mail that includes letters and postcards and packages sealed against inspection
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Similar:

1st-class mail first-class mail first class

type of:
mail

Explanation of 1st class

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