1. Essentials at a Glance

The accusative of the direct object marks the immediate receiver or product of a verb’s action in Latin. By answering “whom?” or “what?” in a transitive sentence, it anchors basic sentence structure. This usage is fundamental for clear communication: most transitive verbs require an accusative object to indicate who or what is affected by the action. Mastering it is vital for interpreting and composing Latin accurately.

2. Definition & Importance

The accusative of direct object is the standard way Latin grammar indicates the noun or pronoun on the receiving end of a transitive verb. Commonly called “the case of the direct object,” it appears with verbs meaning “to love,” “to see,” “to make,” and beyond. Grasping this concept improves understanding of Latin syntax and morphology, as well as reading comprehension—nearly every Latin sentence with an action verb depends on it.

3. Forms & Morphology

Below are regular accusative endings for each declension:

Declension	Nom. Sg.	Acc. Sg.	Acc. Pl.	Notes
1st (ā-stems)	puella	puellam	puellās	Mostly feminine. Sg. ends in -am.
2nd (o-stems)	servus	servum	servōs	Masculine. Neuter ends in -um (sg.) and -a (pl.).
3rd	rēx	rēgem	rēgēs	Ends vary; typically -em in sg. for masc./fem.
4th	manus	manum	manūs	Neuter 4th (e.g. cornū) has -ū (sg.) and -ua (pl.).
5th	diēs	diem	diēs	Often feminine; ends in -em sg., -ēs pl.

-m is the singular sign for most nouns, while -s or -a marks accusative plurals.
Neuter nouns keep the same form for nominative and accusative (e.g., bellum → bellum, bella).

4. Usage & Examples

The accusative is used whenever a transitive verb needs a direct object. Here are five Latin accusative examples:

Brūtus Caesarem interfēcit
“Brutus killed Caesar.”
- Caesarem is in the accusative: the direct object of interfēcit.
Puella librum legit
“The girl reads a book.”
- librum is the object of legit, directly receiving the action “reads.”
Docē tē litterās
“I teach you letters.”
- Two accusatives: tē (person taught) and litterās (thing taught).
Quadrāgintā annōs vīxit
“He lived (for) forty years.”
- Quadrāgintā annōs is an accusative of duration (extent of time).
O tempora, O mōrēs! (Cicero)
“Oh the times, oh the morals!”
- Both tempora and mōrēs are accusatives of exclamation, emphasizing outrage.

5. Common Pitfalls

Mixing Cases: Not all objects are accusative. Some verbs (e.g., persuādeō) take the dative, and memory verbs often take the genitive.
Neuter Confusion: Neuter accusative matches the nominative (e.g., bellum). Context clarifies it’s an object.
Word Order Assumptions: Latin’s free word order means the accusative might appear far from its verb. Recognize endings, not just positions.
Overgeneralizing: Verbs like imperō, noceō, pareō do not use accusative for their objects but dative.

6. Additional Notes & Nuances

Many common errors in Latin accusative involve misunderstanding “double accusative” verbs (e.g. rogō, doceō). Poetic texts may show the “accusative of respect” or “cognate accusative,” where the object echoes the verb’s root (e.g., iter facere, “to travel [make a journey]”). Also, the accusative + infinitive construction marks indirect statements, placing the clause’s subject in accusative rather than nominative.

7. Key Takeaways

Spot the -m or -s/-a endings to identify direct objects quickly.
Check the verb’s valency (does it require an accusative or another case?).
Watch for special uses, like duration of time, exclamation, or multiple accusatives.
Context matters: neuters and fronted objects rely on endings and verb sense.
Consistency: The accusative reliably shows the “whom or what” a verb acts upon.

Accusative of Direct Object in Latin