Новые слова расширяют мой словарь.

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Breakdown of Новые слова расширяют мой словарь.

• новый: new
• слово: the word
• словарь: the dictionary

Questions & Answers about Новые слова расширяют мой словарь.

Why is it новые слова and not новый слова?

In Russian, adjectives must agree with the noun in:

• gender
• number (singular/plural)
• case

Слова is the plural form of слово (a neuter noun). So the adjective must also be plural, not singular.

• новый = masculine, singular, nominative (e.g. новый дом – a new house)
• новое = neuter, singular, nominative (e.g. новое слово – a new word)
• новые = plural, nominative (for any gender in plural: новые слова, новые книги, новые дома)

Since слова is plural and is the subject of the sentence, новые must be plural nominative too: новые слова.

What case are новые слова in, and how can I tell?

Новые слова are in the nominative plural case.

How to tell:

• Ask: Who or what is doing the action? → Новые слова are doing the action (they expand something).
• The subject of a standard Russian sentence is normally in the nominative case.
• The basic dictionary form is слово. The nominative plural of слово is слова.

So новые слова = new words as the subject → nominative plural.

What case is , and why does it look the same as the dictionary form ?