Latin stream/Second Declension

Latin nouns are divided into five declensions, plus irregulars. Most second declension nouns are of the masculine gender. The second declension endings are as follows in the singular: Our example word will be: vir, viri, m. Man.

Here is the plural:

Common second declension masculine nouns: Ager, agri, m. field Gladius, gladii, m. sword Oculus, oculi, m. eye Puer, pueri, m. boy Servus, servi, m. slave

Now, second declension also accommodates neuter nouns, but the endings are slightly different. Neuter nouns are as the declension given above, with the following exceptions (using Pilum, -i, n. javelin, as an example word):

Common second declension neuter nouns: Bellum, belli, n. war Periculum, periculi, n. danger Regnum, regni, n. kindgom saxum, saxi, n. rock

Note that the nominative and accusative forms are the same in both the singular and the plural.