Interlingua recognises that many European languages share common vocabulary – due to the historical prominence of Latin and Greek– and therefore aims to extract and standardize the most widespread words for a concept. To

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The American heiress Alice Vanderbilt Morris (1874–1950) became interested in linguistics and the international auxiliary languagemovement

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It is not certain how many people have an active knowledge of Interlingua. As noted above, Interlingua is claimed to be the most widely spoken naturalistic auxiliary language.

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Interlingua has a largely phonemic orthography.
Interlingua alphabet
Interlingua uses the 26 letters of the ISO basic Latin alphabetwith

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Words in Interlingua may be taken from any language, as long as their internationality is verified by their presence in seven control

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Interlingua has been developed to omit any grammatical feature that is absent from any one primary control language. Thus, Interlingua has no noun–adjective agreementby gender, case, or number (cf. Spanish and Portuguese gatas negras or Italian gatte nere, 'black

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Interlingua is primarily a written language, and the pronunciation is not entirely settled. The sounds in parentheses are not used by all speakers.
Pronunciation

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