A noun ending in -o, -or, -aje, or -ma is masculine

A noun ending in -a, -dad, -tad, -cion, or sion is feminine

Nouns ending in -e have no patter, have to learn each case separately

Nouns ending in -ista (often professions) are both: el pianista and la pianista

Plural

Words ending in a vowel: -s (A E I O U)

For words ending in a consonant: -es

The Article

An article is a word we use with a noun (or a noun phrase) to mark its identifiability

‘A book’ (indefinite article)

‘The book’ (definite article)

In Spanish, articles must agree with the noun that they accompany in both gender and number: