Feminine Noun Declension in Greek

In Brief

Most Greek feminine nouns end in -α or -η in the singular and form their plural in -ες: η μέρα → οι μέρες, η τέχνη → οι τέχνες. Their ending changes with case (the form that shows a noun's job in the sentence): η μέρα is nominative, της μέρας genitive, and τη μέρα accusative. A smaller, more formal group ends in -ος and follows a different pattern: η οδός → της οδού → την οδό.

Overview

A noun is a word for a person, place, thing, or idea. In Greek, every noun has grammatical gender, and feminine nouns normally appear with feminine articles such as η, της, and την. Unlike English, Greek also changes the noun's ending according to both its role in the sentence and whether it is singular or plural. This set of forms is called a declension.

This is an A1 topic because the basic patterns occur everywhere: ordering μια σαλάτα, talking about η οικογένεια, or asking for τη διεύθυνση. You do not need to memorize every possible feminine noun at once. First learn each noun with its article and plural—η γλώσσα, οι γλώσσες—then add the genitive when you meet it.

Modern Greek has four cases. The nominative usually marks the subject (the person or thing doing or being something); the genitive often expresses “of” or possession; the accusative usually marks the direct object (the person or thing directly affected by an action) and follows most prepositions; the vocative is used when addressing someone directly. For most feminine nouns, the vocative is identical to the nominative without the article.

How It Works

The articles show case and number

Before looking at noun endings, learn the feminine definite article. Article and noun must match in gender, number, and case.

Case	Singular	Plural	Typical job
Nominative	η	οι	subject
Genitive	της	των	possession, “of”
Accusative	τη(ν)	τις	direct object; after most prepositions
Vocative	—	—	direct address; no article

The singular accusative is written την or τη according to pronunciation and spelling conventions. You will commonly see την before a vowel and before certain consonants, and τη elsewhere. In careful contemporary writing, retaining final -ν is also common where it prevents ambiguity or reflects pronunciation. The noun pattern itself does not change: τη μέρα and την ημέρα are both accusative phrases.

English mainly uses word order and prepositions to show these relationships. Greek gives you extra signals: both the article and often the noun ending tell you what role the phrase has.

Pattern 1: feminine nouns in -α

This is one of the largest and most useful groups. In the singular, -α becomes -ας in the genitive but stays -α in the accusative. The plural normally uses -ες, with -ών in the genitive.

Case	Singular: η μέρα	Plural: οι μέρες
Nominative	η μέρα	οι μέρες
Genitive	της μέρας	των ημερών
Accusative	τη μέρα	τις μέρες
Vocative	μέρα	μέρες

The genitive plural often moves the stress to the final syllable: γλώσσα → γλωσσών, θάλασσα → θαλασσών. The common word μέρα also uses the older stem ημερ- in the genitive plural: των ημερών. Treat stress and stem changes as part of the form you learn rather than trying to predict every one from the nominative.

A more regular example is γλώσσα:

Case	Singular	Plural
Nominative	η γλώσσα	οι γλώσσες
Genitive	της γλώσσας	των γλωσσών
Accusative	τη γλώσσα	τις γλώσσες

Other frequent nouns in this broad group include η γυναίκα (woman), η ώρα (hour/time), η χώρα (country), η θάλασσα (sea), and η οικογένεια (family). They share the visible case endings, though their stress may behave differently in the genitive plural.

Pattern 2: feminine nouns in -η

Many feminine nouns ending in -η form the singular genitive in -ης. Their nominative and accusative singular are identical, while the article distinguishes the two cases. The plural is normally -ες, and its genitive is -ών.

Case	Singular: η τέχνη	Plural: οι τέχνες
Nominative	η τέχνη	οι τέχνες
Genitive	της τέχνης	των τεχνών
Accusative	την τέχνη	τις τέχνες
Vocative	τέχνη	τέχνες

Compare η τέχνη είναι σημαντική (“art is important”), where the noun is the subject, with αγαπώ την τέχνη (“I love art”), where it is the direct object. The noun looks the same; η versus την makes the case clear.

Common examples include η φίλη (female friend), η νίκη (victory), η αγάπη (love), and η ανάγκη (need). Their basic singular pattern is straightforward: η φίλη, της φίλης, τη φίλη.

Not every word spelled with final -η has a completely predictable plural. High-frequency learned patterns such as η πόλη → οι πόλεις (“city → cities”) and η δύναμη → οι δυνάμεις (“strength → strengths”) belong to older or more complex classes. Learn these plurals as vocabulary; do not change them to πόλες or δύναμες.

Pattern 3: feminine nouns in -ος

A smaller set of feminine nouns ends in -ος, even though -ος is often associated with masculine nouns. Gender is shown by the article: η οδός, not ο οδός. These nouns are especially common in formal, technical, and learned vocabulary.

Case	Singular: η οδός	Plural: οι οδοί
Nominative	η οδός	οι οδοί
Genitive	της οδού	των οδών
Accusative	την οδό	τις οδούς

Notice that this pattern does not use the ordinary feminine plural -ες. It has nominative plural -οι and accusative plural -ους, while the feminine articles remain οι and τις. Frequent examples include η οδός (road/street), η είσοδος (entrance), η έξοδος (exit), η μέθοδος (method), and η περίοδος (period).

The everyday word for “street” is often ο δρόμος, but οδός appears in street names, signs, directions, and formal language: Οδός Αθηνάς. This makes the pattern worth recognizing even at an early level.

A beginner decision path

When you meet a new feminine noun:

1. Confirm its gender from the article: η or μια.
2. Check its nominative ending: usually -α, -η, or less often -ος.
3. Learn its genitive singular and nominative plural with it.
4. Keep the article and noun in the same case: της γλώσσας, not της γλώσσα.
5. Record any stress or stem change: οι μέρες but των ημερών.

Examples in Context

Greek	English	Note
Η μέρα είναι όμορφη.	The day is beautiful.	μέρα is nominative singular, the subject.
Δεν θυμάμαι τη μέρα.	I do not remember the day.	Accusative singular in -α.
Το τέλος της μέρας ήταν ήσυχο.	The end of the day was quiet.	Genitive singular in -ας.
Οι μέρες περνούν γρήγορα.	The days pass quickly.	Nominative plural in -ες.
Η γλώσσα αλλάζει με τον χρόνο.	Language changes over time.	Nominative singular in -α.
Μαθαίνω δύο γλώσσες.	I am learning two languages.	Accusative plural in -ες.
Η ιστορία των γλωσσών είναι συναρπαστική.	The history of languages is fascinating.	Genitive plural with final stress.
Η τέχνη μάς βοηθά να σκεφτόμαστε.	Art helps us think.	Nominative singular in -η.
Επισκεφτήκαμε την έκθεση τέχνης.	We visited the art exhibition.	τέχνης is a genitive used inside a compound phrase.
Βλέπω τη φίλη μου κάθε Σάββατο.	I see my friend every Saturday.	Accusative singular; the noun itself still ends in -η.
Οι φίλες μου μένουν στην Αθήνα.	My friends live in Athens.	Nominative plural in -ες.
Η είσοδος είναι δεξιά.	The entrance is on the right.	Feminine -ος noun in the nominative.
Περιμένουμε στην είσοδο.	We are waiting at the entrance.	σε + την → στην; accusative είσοδο.
Κλείστε τις εξόδους κινδύνου.	Close the emergency exits.	Accusative plural of a feminine -ος noun.
Η ονομασία της οδού άλλαξε.	The name of the street changed.	Genitive singular οδού.

Common Mistakes

Using the article but not declining the noun

• Wrong: της γλώσσα
• Right: της γλώσσας
• Why: The article and noun must both be genitive. With a regular noun in -α, add -ς in the genitive singular.

Treating every -ος noun as masculine

• Wrong: ο είσοδος είναι κλειστός
• Right: η είσοδος είναι κλειστή
• Why: Endings provide clues, not guarantees. Είσοδος is feminine, so its article and adjective must also be feminine.

Making -ος feminines follow the -α/-η plural

• Wrong: οι είσοδες / τις είσοδες
• Right: οι είσοδοι / τις εισόδους
• Why: Learned feminine nouns in -ος use -οι in the nominative plural and -ους in the accusative plural.

Assuming nominative and accusative always look different

• Wrong idea: η τέχνη and την τέχνη must have different noun endings.
• Right: Η τέχνη με ενδιαφέρει but αγαπώ την τέχνη.
• Why: For most feminine nouns in -α and -η, nominative and accusative singular have the same noun form. The article and sentence role identify the case.

Keeping the original stress in every genitive plural

• Wrong: των γλώσσων
• Right: των γλωσσών
• Why: Many feminine genitive plurals carry stress on the final syllable. Because not every noun behaves identically, learn the genitive plural as a complete phrase.

Overgeneralizing the regular -η plural

• Wrong: οι πόλες
• Right: οι πόλεις
• Why: Some very common -η nouns preserve a different historical declension. Their plural must be learned separately.

Usage Notes

In normal speech, the nominative, genitive, and accusative are all active and useful. The genitive plural is less frequent than the other forms in beginner conversation, but it appears naturally in phrases such as η ζωή των γυναικών (“women's lives”) and το κέντρο των πόλεων (“the center of the cities”). Do not avoid it; simply expect its stress to require extra practice.

Most prepositions in present-day Greek take an accusative phrase: με τη φίλη μου (“with my friend”), για την οικογένεια (“for the family”), and από την πόλη (“from the city”). The preposition σε combines with the article: σε + την = στην, σε + τις = στις. Thus στη θάλασσα means “at/to the sea,” and στις πόλεις means “in/to the cities.”

The vocative of feminine nouns is generally easy because it usually matches the nominative noun without an article: Μαρία!, Ελένη!, κυρία! (“Maria!”, “Eleni!”, “madam!”). Direct address with feminine -ος nouns is uncommon, so beginners can safely learn those nouns first through their nominative, genitive, and accusative forms.

Beyond the Basics / Advanced Use

You do not need to master the following details at A1, but you will encounter them later.

Greek feminine declension contains more subgroups than the three broad ending patterns suggest. Nouns such as πόλη, δύναμη, and σκέψη have plurals in -εις and genitive plurals in -εων: οι πόλεις, των πόλεων; οι δυνάμεις, των δυνάμεων; οι σκέψεις, των σκέψεων. Their genitive singular may also vary by word and register: της πόλης is everyday Modern Greek, while της πόλεως is formal or fixed in certain names and expressions.

Stress is part of declension, not decoration. In some paradigms it shifts because Greek normally limits how far stress can stand from the end of a word; in others, traditional learned forms preserve a special pattern. Compare η οικογένεια → των οικογενειών, η θάλασσα → των θαλασσών, and η μέρα → των ημερών. A dictionary or reliable inflection table is the safest guide for an unfamiliar noun.

Some feminine -ος nouns belong to a learned pattern that remains productive in educated and technical language. Compounds often behave alike: η παράγραφος → της παραγράφου → οι παράγραφοι and η διάμετρος → της διαμέτρου → οι διάμετροι. Their stress may shift in certain forms, so knowing οδός gives you the endings but not always the complete stress pattern of every noun.

Finally, proper names and family names can have their own conventions, and some borrowed feminine nouns are indeclinable. Those are vocabulary-specific matters rather than exceptions to force into the beginner patterns.

Practice Tips

1. Learn four-part noun cards. Instead of writing only γλώσσα = language, record η γλώσσα – της γλώσσας – οι γλώσσες – των γλωσσών. Saying the article aloud makes gender and case easier to retain.
2. Transform one short sentence. Start with Η φίλη έρχεται (“The friend is coming”), then make βλέπω τη φίλη (“I see the friend”), το σπίτι της φίλης (“the friend's house”), and οι φίλες έρχονται (“the friends are coming”). This connects endings to real sentence jobs.
3. Mark stress visibly. Group genitive plurals by pattern and read them aloud: των γλωσσών, των τεχνών, των ημερών. For irregular words such as πόλη, learn the plural as a separate spoken chunk: οι πόλεις, των πόλεων.

Related Concepts

• Prerequisite: Case System Introduction — explains what the nominative, genitive, accusative, and vocative do.
• Useful foundation: Noun Gender — helps you recognize feminine nouns and choose the correct article.
• Useful foundation: Definite Articles — covers the article forms that accompany each case.
• Next step: Plural Formation — compares plural patterns across all three Greek genders.
• Compare: Masculine Noun Declension and Neuter Noun Declension — complete the basic Greek noun system.