- see: Wiktionary:Greek noun inflection-table templates for a detailed list.
In Greek nouns are declined, they change their form depending upon their case and number. A few nouns, usually loanwords recently borrowed from foreign languages, are indeclinable - all case forms are the same; in general (and correctly) the plural form will also be the same, although some, like φιλμ, may occasionally follow the source practice, giving φιλμς.
Nouns may be classified into three genders: masculine, feminine and neuter. It is important to remember that grammatical gender is not the same as biological gender. Although in many cases these may be the same: man (άντρας) is masculine and woman (γυναίκα) is feminine, in others they are not: the words for boy (αγόρι) and girl (κορίτσι) are both neuter. In addition inanimate objects may be masculine or feminine although many are neuter; most loanwords are neuter. A fourth gender common is largely made up of nouns referring to occupations done by both men or women. Common nouns have a masculine endings but any articles or adjectives must agree with the gender of the person, thus for doctor (γιατρός): ο νεός γιατρός οr η νεά γιατρός. (It should also be noted that γιατρός also exists in feminine forms, a woman doctor may also be γιατρίνα or γιάτρισσα.