о + Accusative

Accusative with O

Level 4Sounds Like o + akuzativ

While 'о' with the locative means 'about' (topic), 'о' with the accusative marks physical impact ('against', 'onto'), suspension ('on/from'), or metaphorical transgression ('against').

How It Works

Many learners encounter the preposition о early on solely with the locative case to mean 'about' (e.g., разговарати о књизи). However, in standard Serbian, о is a dual-case preposition that also governs the акузатив for dynamic contact, collision, and specific idiomatic expressions.

1. Physical Contact, Tripping, and Collision
When governed by verbs of striking, stumbling, or physical impact, о + акузатив specifies the surface or obstacle contacted:

  • Tripping / Stumbling: One of the most frequent everyday uses is with verbs of tripping, where о marks what caught the foot: саплести се о камен (to trip over a stone), спотаћи се о праг (to stumble over a threshold), запети о кабл (to catch one's foot on a cable).
  • Impact / Bouncing: ударити главом о плочник (to hit one's head against the pavement), разбити се о стене (to shatter against the rocks), ударити чашом о сто (to clink/tap a glass against the table).
  • Leaning / Suspension (Register Note): Phrasings like ослонити се о дрво (to lean against a tree) or обесити капут о клин (to hang a coat on a peg) are grammatically standard, but contemporary spoken Serbian overwhelmingly prefers на + акузатив (ослонити се на дрво, окачити капут на клин). Furthermore, motion towards suspension (о клин [accusative]) contrasts with static spatial suspension expressed by the locative: висити о клину (to hang on a peg) or the idiom висити о концу (to hang by a thread).

2. Abstract and Metaphorical Functions
In standard and literary Serbian, о + акузатив appears in fixed idioms and verb-complement patterns:

  • Transgression / Injustice: With the verb огрешити се, it identifies the standard, rule, or individual that has been wronged: огрешити се о закон / о истину / о пријатеља (to transgress against the law / truth / to wrong a friend).
  • Repercussions / Rebound: In the fixed idiom обити се о главу (literally 'to strike against one's head'), meaning to blow up in one's face or backfire.
  • Rivalry / Contention: With verbs like отимати се, denoting a prize or power fought over: отимати се о власт (to vie for power).

3. Distinguishing 'о' from 'у' and 'против'

  • о vs. у (+ accusative): In modern spoken Serbian, у + акузатив is the neutral, default construction for direct collisions (e.g., ударити главом у врата / зид; аутомобил је ударио у дрво). By contrast, о + акузатив either emphasizes surface bouncing, glancing contact, or carries a more formal and literary tone.
  • о vs. против: Serbian против (+ genitive) expresses conscious opposition, antagonism, or conflict (e.g., fighting against an opponent). It is never used for physical impact. Phrasing such as *ударио је против зида is entirely ungrammatical.

Examples (5)

  1. Пао је на леду и снажно ударио главом о плочник.

    He fell on the ice and hit his head hard against the pavement.

    Word by Word: Fell he on ice and hard hit with-head against pavement.

    Shows physical collision against an external surface. The inanimate masculine noun 'плочник' retains the nominative-accusative form.

  2. Талас се уз буку разбио о високу стену.

    The wave crashed noisily against the high rock.

    Word by Word: Wave itself with noise shattered against high rock.

    Demonstrates impact against a boundary. The feminine noun takes the accusative ending '-у' ('стену').

  3. Та тактика би му се лако могла обити о главу.

    That tactic could easily blow up in his face.

    Word by Word: That tactic would to-him itself easily could strike against head.

    Illustrates the common idiom 'обити се о главу' (to backfire or rebound upon oneself).

  4. Судија се није огрешио о закон.

    The judge did not violate the law.

    Word by Word: Judge itself not transgressed against law.

    'Огрешити се о + акузатив' is the standard formal construction for breaching a rule, law, or moral code.

  5. Обесио је своју јакну о чивилук крај врата.

    He hung his jacket on the coat rack near the door.

    Word by Word: Hung he his jacket on coat-rack near door.

    Expresses physical suspension from a fixture.

Common Mistakes

  • Using the locative case after 'о' when describing collision or transgression.

    Ударио је руком о столу.
    Ударио је руком о сто.

    Learners often treat 'о' as only governing the locative ('about'). When expressing collision or contact against an object, the noun must be in the accusative ('сто', not 'столу').

  • Using 'против' instead of 'о' to translate English 'against' for physical contact.

    Лопта је ударила против зида.
    Лопта је ударила о зид.

    'Против' strictly signifies ideological, legal, or adversarial opposition. Dynamic contact or collision requires 'о + акузатив' (or 'у + акузатив').

  • Confusing 'огрешити се о некога' with talking about someone.

    Огрешио се о њему пред свима.
    Огрешио се о њега пред свима.

    'Огрешити се о + акузатив' means to wrong or commit an injustice against someone, requiring accusative pronoun forms ('њега'), not locative ('њему').

How It Connects

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о + AccusativeLevel 4Accusative with O

Learn This First

To use 'о + акузатив' (indicating contact, brushing against, or impact, e.g., 'ударити о зид'), learners need to form accusative singular nouns properly and contrast this usage with the more widespread locative pattern 'о + локатив' (talking/thinking 'about' something).

Words in This Pattern

о