Quote Originally Posted by kgcole View Post
What do these two abbreviations mean? Винительный неодуш. and Винительный одуш.
Винительный stands for the accusative.

Неодуш. = неодушевленный = inanimate. That means the inanimate noun, like man, girl, horse.
Одуш. = одушевленный = animate. That means the animate noun, like book, table, air, knowledge.

The fact that the noun is animated or inanimated affects the forms of the accusative of the masculine nouns that belong to the first declension and have zero flexion both in the singular and plural. It also affects the forms of the accusative of the nouns that belong to the second declension in the plural.

Nominative – accusative

Конь – коня, но стол – стол
Кони – коней, но столы – столы
Женщины – женщин, но карты – карты

Perhaps these tables can help
Имя существительное в русском языке — Википедия

Kevin, why on earth did you choose to learn a language with the grammar like that? I guess no one had warned you.