Vulgaris is a Latin adjective meaning "common" or "belonging to the masses of common people." It can refer to several related concepts, including:
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Vulgaris aerae: The Latin translation for the Common Era (CE), which is a secular alternative to Anno Domini (AD).
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Era Vulgaris: A pseudo-Latin phrase sometimes used humorously to refer to the Common Era. Note that a more accurate translation in Latin would be "Aera Communis," as "Era Vulgaris" can be interpreted as "Common Mistress."
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Sermo vulgaris: Vulgar Latin, the colloquial form of Latin spoken by the common people, which eventually evolved into the Romance languages (e.g., Spanish, French, Italian, Portuguese, Romanian).
In essence, "vulgaris" signifies something that is ordinary, widespread, or derived from the everyday language and experiences of the general populace.
