General guidelines for nouns referring to places and things
In the following list of examples, the endings of nouns are in bold.
Most nouns that end in -o, -ma, -pa, -ta, -l, -n, -r and -s, are masculine.
Most nouns that end in -a, -ción, -sión, -dad, -tad, -sis, -itis, and -z are feminine.
Nouns that end in -e can be either masculine or feminine.