Feminine Noun Endings

Singular feminine nouns take the definite article la (the) or the indefinite article una (a/an).

Nouns that and in –a are usually feminine:

Exceptions:

Most nouns that end in –ción or –sión are feminine:

una canción	a song
la procesión	the procession

–dad, –tad, –tud are usually feminine endings:

Nouns that end in –ed are usually feminine:

una pared	a wall
la sed	thirst

Exceptions:

el césped

the lawn

–itis is usually a feminine ending:

la laringitis	laringitis
la celulitis	cellulite

–iz is usually a feminine ending:

una perdiz	a partridge
una matriz	a matrix

Nouns that end in –sis are usually feminine:

una tesis	a thesis
una dosis	a dose

Exceptions:

el análisis	the analysis
el énfasis	the emphasis

–umbre is usually a feminine ending:

una costumbre	a custom/habit
la cumbre	the summit/top