Gender in Italian

Italian nouns have two genders: masculine (maschile) and feminine (femminile).
MASCULINE NOUNS
As a rule, masculine nouns in Italian have the "-o" ending in the singular and the "-i" ending in the plural:
il pavimento – the floor, i pavimenti – the floors
il garazzo – the boy, i ragazzi – the boys

However, some masculine nouns may have other endings:
Foreign words that usually end in a consonant. In the plural, such words remain unchanged, only the article changes to indicate that there are several objects:

il bar – the bar, i bar – the bars
il bus – the bus, i bus – the buses
il tram – the tram, i tram – the trams
il picnic – the picnic, i picnic – the picnics
Words that have stress on the final vowel in the singular do not change them in the plural. Only the article changes.

il tè – the tea, i tè – the teas
il caffè – the coffee, i caffè – the coffees
In the plural, Greek words ending in "-ma" or "-ta" change the ending "-а" to "-i".

il problema – the problem, i problemi – the problems
il teorema – the theorem, i teoremi – the theorems
il poeta – the poet, i poeti – the poets
Masculine singular nouns can have an "-e" ending, which changes to "-i" in the plural.

il prete – the priest, i preti – the priests
FEMININE NOUNS
Most Italian feminine nouns have "-a" ending in the singular and
"-e" ending in the plural:

la casa – the house, le case – the houses
la bambina – the girl, le bambine – the girls
la donna – the woman, le donne – the women

Like the masculine, some feminine nouns can also have other endings:
Words with stressed "-tà" or "-tù" endings that don't change in the plural. Only the article changes.

la città – the city, le città – the cities
la facoltà – the faculty, le facoltà – the faculties
la virtù – the virtue, le virtù – the virtues
Words with "-zione" ending that transforms into "-zioni" in the plural.

la rivoluzione – the revolution, le rivoluzioni – the revolutions
la stazione – the station, le stazioni – the stations
la costituzione – the constitution, le costituzioni – the constitutions
Words with the "-i" ending. In the plural, this ending remains unchanged, only the article changes.


l'oasi – the oasis, le oasi – the oases
la crisi – the crisis, le crisi – the crises
l'analisi – the analysis, le analisi – the analyses

The masculine noun is an exception
il brindisi – the toast, i brindisi – the toasts

A group of nouns with "-o" ending and truncated from the full word form. In such words the ending remains unchanged in the plural.

l'auto – le auto (from the full form of the word l'automobile)
la metro – le metro (from the full form of the word la metropolitana)
la foto – le foto (from the full form of the word la fotografia)

The masculine noun is an exception
il cinema – the cinema (truncated from the word il cinematografo).
Feminine nouns can have "-e" ending in the singular, which transforms into "-i" in the plural.

la madre – the mother, le madri – the mothers
la fede – the belief, le fedi – the beliefs
NOUNS WITH "–ISTA" ENDING
Nouns with "-ista" suffix ending have the same ending in the singular for both masculine and feminine; in the plural, they transform into "-i" ending for masculine and "-e" ending for feminine. As a rule, these nouns denote a profession, political or social views:

The dentist: il dentista – i dentisti, la dentista – le dentiste
The stylist: lo stilista – gli stilisti, la stilista – le stiliste
The journalist: il giornalista – i giornalisti, la giornalista – le giornaliste
The florist: il fiorista – i fioristi, la fiorista – le fioriste
The socialist: il socialista – i socialisti, la socialista – le socialiste
The communist: il comunista – i comunisti, la comunista – le comuniste etc.
Remember:
In Italian, all car brands are of feminine gender
(la Fiat, la Jeep, la Smart, la Mercedes etc.)