| A | B |
|---|
| declension | a category of nouns |
| nominative | subject of a sentence |
| accusative | direct object of a sentence |
| first declension | group of nouns that is characterized by the letter -a |
| second declension | group of nouns that is characterized by the letter -u |
| third declension | group of nouns that is characterized by the letter -e |
| -a | nominative 1st declension |
| -em | accusative 3rd declension |
| -us | nominative 2nd declension |
| -am | accusative 1st declension |
| -um | accusative 2nd declension |
