Masculine Noun Declension

This page brings the entire masculine noun paradigm together in one place — all seven cases, singular and plural, for both a hard stem and a soft stem. The masculine declension is where three of Croatian's signature noun rules collide at once: the animacy split in the accusative, the -ov-/-ev- "long plural" infix, and the hard/soft ending alternation (-om vs -em, vocative -e vs -u). You almost certainly met these one at a time elsewhere; here they finally cohere into a single grid you can read across.

The two model nouns

We will track two nouns through every case:

• stol ("table") — a hard stem (ends in a non-palatal consonant), inanimate.
• prijatelj ("friend") — a soft stem (ends in the palatal -lj), animate.

Choosing one inanimate and one animate noun is deliberate: it lets you see the accusative split in action. Choosing one hard and one soft stem lets you see every ending alternation side by side.

Singular

Notice how compact the singular really is: the genitive, dative, and locative endings (-a, -u, -u) are identical for hard and soft stems. Only two slots differ by stem type — the vocative (-e/-u) and the instrumental (-om/-em) — and only one slot differs by animacy (the accusative).

The animacy split (accusative singular)

This is the single most important thing on the page. For masculine nouns, the accusative singular has two possible forms, and which one you use depends on whether the noun is animate (a living being) or inanimate:

• Inanimate → accusative looks like the nominative: vidim stol ("I see the table").
• Animate → accusative looks like the genitive: vidim prijatelja ("I see the friend").

There is a real logic here, not just a rule to memorise. Croatian word order is free, so without case marking you could not tell subject from object in a sentence like "the friend sees the brother." For people and animals — the things most likely to be both a subject and an object — Croatian gives the accusative a distinct shape (borrowed from the genitive) so the object is never confused with the subject. Inanimate objects rarely act as agents, so they did not need this safeguard and kept the simpler nominative-shaped accusative.

The vocative and palatalisation

The vocative (the form for calling or addressing someone) is the other place where hard and soft stems part ways. Hard stems take -e; soft stems take -u:

But there is a complication on hard stems ending in k, g, h: the vocative -e triggers palatalisation, turning that final consonant into a palatal one (k → č, g → ž, h → š):

This is the same palatalisation you meet across Croatian declension; here it is triggered by the front vowel -e of the vocative. After the change, the ending is still -e (junače, Bože), not -u.

Plural

The masculine plural has its own personality, dominated by the -ov-/-ev- infix that most one-syllable nouns insert before the plural endings.

Two things make the plural easier than it looks. First, the vocative plural always equals the nominative plural — no separate form to learn. Second, the dative, locative, and instrumental plural are all -ima, identical, for every masculine noun. That collapse of three cases into one ending is a gift; it means the entire "oblique plural" is a single form.

The -ov-/-ev- "long plural" infix

Most monosyllabic masculine nouns insert -ov- (after a hard stem) or -ev- (after a soft stem) between the stem and the plural endings. So stol does not pluralise as stoli but as stol-*ov-i; *muž ("husband") becomes muž-*ev-i*.

The choice of -ov- vs -ev- follows the same hard/soft logic as everywhere else: a soft stem (palatal consonant, or after c/ž/š/č/ć/đ/j/lj/nj) prefers the front-vowel variant -ev-. Polysyllabic nouns like prijatelj and student do not take the infix — they go straight to the plural endings (prijatelji, studenti). There is no fully predictable rule for every word, but "one syllable → expect the infix" is right most of the time.

The genitive plural -a (and the fleeting vowel)

The masculine genitive plural ends in -a (a "long a" in pronunciation, but written plainly): stolova, prijatelja, gradova. This is the form you need after numbers from five up, after quantity words like puno and mnogo, and in many partitive expressions.

Watch for the fleeting -a- (nepostojano a): some masculine nouns have an -a- in the nominative singular that drops in declension, and the genitive plural is where this is most visible. The noun novac ("money / coin") has genitive plural novaca; the noun otac ("father") declines as oca, ocu, oca… losing the -a-.

How this differs from English

English marks the plural with a single -s and otherwise leaves nouns untouched: table, tables; friend, friends. It has no case endings on nouns at all (the genitive 's is the lone survivor) and no concept of grammatical animacy in the noun system. Croatian asks the masculine noun to do three jobs that English never asks of it: signal its case (seven of them), signal number through a sometimes-extended stem (the -ov-/-ev- infix), and — uniquely strange to English eyes — change its accusative form depending on whether it is alive. There is no English instinct to fall back on here; the animacy split in particular has to be learned as a genuinely new category of thought.

Common Mistakes

Key Takeaways

• Singular is compact: gen -a, dat -u, loc -u are the same for all masculines; only the vocative (-e hard / -u soft, with k/g/h → č/ž/š) and instrumental (-om hard / -em soft) split by stem type.
• The accusative singular depends on animacy: inanimate = nominative (stol), animate = genitive (prijatelja). This is singular-only.
• Most monosyllabic nouns insert the -ov-/-ev- long-plural infix (stol → stolovi, muž → muževi); polysyllabic nouns do not.
• Genitive plural -a (stolova, prijatelja); watch for the fleeting -a- (novac → novaca).
• Dat = Loc = Instr plural -ima for every masculine noun, and the vocative plural = nominative plural.