First Declension
| Singular |
| Nom/Voc | hōra | īra | fēmina |
| Genitive | hōrae | īrae | fēminae |
| Dative | hōrae | īrae | fēminae |
| Accusative | hōram | īram | fēminam |
| Ablative | hōrā | īrā | fēminā |
| Plural |
| Nom/Voc | hōrae | īrae | fēminae |
| Genitive | hōrārum | īrārum | fēminārum |
| Dative | hōrīs | īrīs | fēminīs |
| Accusative | hōrās | īrās | fēminās |
| Ablative | hōrīs | īrīs | fēminīs |
Second Declension
| Singular |
| Nominative | animus | filius | vir | aper |
| Vocative | anime | filī | vir | aper |
| Genitive | animī | filiī | virī | aprī |
| Dative | animō | filiō | virō | aprō |
| Accusative | animum | filium | virum | aprum |
| Ablative | animō | filiō | virō | aprō |
| Plural |
| Nom/Voc | animī | filiī | virī | aprī |
| Genitive | animōrum | filiōrum | virōrum | aprōrum |
| Dative | animīs | filiīs | virīs | aprīs |
| Accusative | animōs | filiōs | virōs | aprōs |
| Ablative | animīs | filiīs | virīs | aprīs |
Second Declension—Neuter Gender
| Singular |
| Nom/Voc | cōnsilium | vīnum |
| Genitive | cōnsiliī | vinī |
| Dative | cōnsiliō | vinō |
| Accusative | cōnsilium | vīnum |
| Ablative | cōnsiliō | vinō |
| Plural |
| Nom/Voc | cōnsilia | vīna |
| Genitive | cōnsiliōrum | vinōrum |
| Dative | cōnsiliīs | vīnīs |
| Accusative | cōnsilia | vīna |
| Ablative | cōnsiliīs | vīnīs |
Third Declension
| Singular |
| Nom/Voc | fūr | occāsiō | vēritās | nox | mēns | piscis |
| Genitive | fūris | occāsiōnis | vēritātis | noctis | mentis | piscis |
| Dative | fūrī | occāsiōnī | vēritātī | noctī | mentī | piscī |
| Accusative | fūrem | occāsiōnem | vēritātem | noctem | mentem | piscem |
| Ablative | fūre | occāsiōne | vēritāte | nocte | mente | pisce |
| Plural |
| Nom/Voc | fūrēs | occāsiōnēs | vēritātēs | noctēs | mentēs | piscēs |
| Genitive | fūrum | occāsiōnum | vēritātum | noctium | mentium | piscium |
| Dative | fūribus | occāsiōnibus | vēritātibus | noctibus | mentibus | piscibus |
| Accusative | fūrēs | occāsiōnēs | vēritātēs | noctēs(-īs) | mentēs(-īs) | piscēs (-īs) |
| Ablative | fūribus | occāsiōnibus | vēritātibus | noctibus | mentibus | piscibus |
Third Declension—Neuter Gender
| Singular |
| Nom/Voc | opus | culmen | mare (i-stem) |
| Genitive | operis | culminis | maris |
| Dative | operī | culminī | marī |
| Accusative | opus | culmen | mare |
| Ablative | opere | culmine | marī |
| Plural |
| Nom/Voc | opera | culmina | maria |
| Genitive | operum | culminum | marium |
| Dative | operibus | culminibus | maribus |
| Accusative | opera | culmina | maria |
| Ablative | operibus | culminibus | maribus |
Fourth Declension
| Singular |
| Nom/Voc | manus | successus | senātus |
| Genitive | manūs | successūs | senātūs |
| Dative | manuī | successuī | senātuī |
| Accusative | manum | successum | senātum |
| Ablative | manū | successū | senātū |
| Plural |
| Nom/Voc | manūs | successūs | senātūs |
| Genitive | manuum | successuum | senātuum |
| Dative | manibus | successibus | senātibus |
| Accusative | manūs | successūs | senātūs |
| Ablative | manibus | successibus | senātibus |
Fifth Declension
| Singular |
| Nom/Voc | rēs* | diēs* |
| Genitive | rēi | diēī |
| Dative | reī | diēī |
| Accusative | rem | diem |
| Ablative | rē | diē |
| Plural |
| Nom/Voc | rēs | diēs |
| Genitive | rērum | diērum |
| Dative | rēbus | diēbus |
| Accusative | rēs | diēs |
| Ablative | rēbus | diēbus |
*The only fifth declension nouns with common plural forms are diēs and rēs.
Nouns of Irregular or Defective Declension
| Singular |
| Nom/Voc | nēmō | vīs | domus |
| Genitive | (nūllīus) | — | domūs(-ī) |
| Dative | nēminī | — | domuī(-ō) |
| Accusative | nēminem | vim | domum |
| Ablative | (nūllō) | vī | domō(-ū) |
| Plural |
| Nom/Voc | — | vīrēs | domūs |
| Genitive | — | vīrium | domuum(-ōrum) |
| Dative | — | vīribus | domibus |
| Accusative | — | vīrēs(-īs) | domōs(-ūs) |
| Ablative | — | vīribus | domibus |