Plural number refers to more than one (or more than two, when dual exists).
Plural forms are essential for reading Greek.
Plural noun endings (examples):
• First declension: -αι (nom), -ῶν (gen), -αις (dat), -ας (acc)
• Second declension: -οι (nom), -ων (gen), -οις (dat), -ους (acc)
• Neuter plural: -α (nom/acc) - takes singular verb!
Plural verb endings (present active):
• 1st person: -ομεν (λύομεν - we loose)
• 2nd person: -ετε (λύετε - you all loose)
• 3rd person: -ουσι(ν) (λύουσι - they loose)
Note: Neuter plural subjects take singular verbs (τὰ ζῷα τρέχει - "the animals runs")
Examples from Texts
Here are some words showing the plural number in actual Greek texts:
θρασέες
θρασύς
bold
noun
nominative
masculine
plural
πανδοξίας
πανδοξία
absolute fame, perfect glory
noun
accusative
feminine
plural
ἄνδηρ'
ἄνδηρον
raised bank
noun
nominative
neuter
plural
Μυτιληναῖοι
Μυτιληναῖοι
Mytilene
noun
nominative
masculine
plural
κορακίνων
κοράκινος
like a raven, raven-black
noun
genitive
masculine
plural
ἀετούς
ἀετός
eagle
noun
accusative
masculine
plural
αὐγοειδέσι
αὐγοειδής
of the nature of light
noun
dative
masculine
plural
πεντήρεσιν
πεντήρης
quinquereme
noun
dative
feminine
plural