Masculine and neuter nouns of the 2nd declension

citation	τὸ ἱερόν, ἱεροῦ = temple
	singular	plural
nom	τὸ ἱερ-όν the temple	τὰ ἱερ-ά the temples
gen	τοῦ ἱερ-οῦ of the temple, the temple's	τῶν ἱερ-ῶν of the temple, the temples’
dat	τῷ ἱερ-ῷ to, for the temple	τοῖς ἱερ-οῖς to, for the temples
acc	τὸ ἱερ-όν the temple as direct object	τὰ ἱερ-ά the temples as direct object
voc	ὦ ἱερ-όν O temple!	ὦ ἱερ-ά O temples!

citation	ὁ φίλος, φίλου = friend
	singular	plural
nom	ὁ φίλ-ος the friend	οἱ φίλ-οι the friends
gen	τοῦ φίλ-ου of the friend, the friend's	τῶν φίλ-ων of the friends, the friends’
dat	τῷ φίλ-ῳ to, for the friend	τοῖς φίλ-οις to, for the friends
acc	τὸν φίλ-ον the friend as direct object	τοὺς φίλ-ους the friends as direct object
voc	ὦ φίλ-ε O friend!	ὦ φίλ-οι O friends!