ο

Lower-case omicron (ὂ μικρόν), the 15th letter of the ancient Greek alphabet. It represented the close-mid back rounded vowel /o/. It is preceded by ξ and followed by π.

Derived terms

Greek

Alternative forms

ὁ (ho) — polytonic

Etymology

Inherited from Ancient Greek ὁ (ho).

Pronunciation

IPA^(key): /o̞/

Article

ο • (o) m sg

the definite masculine singular article. the

Declension

The definite article
	singular			plural
	masculine	feminine	neuter	masculine	feminine	neuter
nominative	ο (o)	η (i)	το (to)	οι (oi)	οι (oi)	τα (ta)
genitive	του (tou)	της (tis)	του (tou)	των (ton)	των (ton)	των (ton)
accusative	το(ν) (to(n)) ¹	τη(ν) (ti(n)) ¹	το (to)	τους (tous)	τις (tis)	τα (ta)

1. The final ν is preserved before vowels, and the plosive/affricate consonants:
κ, π, τ, ξ, ψ, μπ, ντ, γκ, τσ, τζ
Archaic forms used in certain fixed phrases: τοις (tois), τας (tas)

Pontic Greek

Etymology

From Ancient Greek ὁ (ho).

Pronunciation

IPA^(key): /o̞/

Article

ο (o) m sg

(definite) the

Declension

The definite article

number	singular			plural
gender	m	f	n	m	f	n
nominative	ο	η	το	οι		τα
genitive	τη, του, τση	τη, τση	τη, του, τση	των, τουν, τη		των, τη
accusative	τον	την	το	τους, τσου, τοι, τσοι, τοιν, τοις		τα
* The final vowel is canonically deleted when the next word starts with a vowel. This happens in the nominative case as well. * The final ν is deleted when the next word starts with λ, μ or ρ, or when the next word is μου, σου. * Τhe inital τ becomes σ when preceded by the preposition ας.

Tsakonian

Etymology

From Ancient Greek ὁ (ho).

Pronunciation

IPA^(key): /o̞/

Article

ο (o) m sg

(definite) the

Declension

The definite article

Number	Singular			Plural
Case / Gender	m	f	n	m	f	n
nominative	ο	α	το	οι	οι	τα
accusative	το(ν)^*	τα(ν)^*	το	του(ρ)^*	του(ρ)^*	τα
genitive	του	τα(ρ)^*	του	του(ν)^*	του(ν)^*	του(ν)^*
The final "ν" is preserved before vowels, and the plosive/affricate consonants: κ, π, τ, μπ, ντ, γκ, τσ, τζ The final "ρ" is preserved before vowels