The Indoeuropean language family includes a vast array of languages that are spoken in different parts of the world. Some of the most commonly spoken languages that belong to this family include English, French, Spanish, German, Italian, Russian, and Hindi. The term 'Indoeuropean language' can also be referred to as 'Indo-Germanic', 'Aryan', or 'Indo-European'. Moreover, linguists and scholars may use various synonyms when discussing this language family, such as 'Indo-Iranian', 'Celtic', 'Italic', 'Slavic', and 'Baltic'. While the Indoeuropean language family is diverse, several languages share common linguistic features such as grammar, vocabulary, and sentence structure.