--- title: "Nominative Case — AP Latin Definition & Exam Guide" description: "The nominative case marks the subject of a Latin sentence and predicate nouns after sum. Spotting it fast is the first step in every AP Latin translation." canonical: "https://fiveable.me/ap-latin/key-terms/nominative-case" type: "key-term" subject: "AP Latin" --- # Nominative Case — AP Latin Definition & Exam Guide ## Definition The nominative case is the Latin case that marks the subject of a sentence (Caesar venit, "Caesar comes") and the predicate noun or adjective after a linking verb like sum. On the AP Latin exam, identifying the nominative tells you who or what is doing the action before you translate anything else. ## What It Is The nominative case is the "naming" [case](/ap-latin/key-terms/case "fv-autolink"). It marks the subject of a finite [verb](/ap-latin/unit-4 "fv-autolink"), so when you see *Caesar milites misit*, the nominative *Caesar* tells you he's the one sending. It also marks the predicate nominative, the noun or adjective that completes a linking verb like *sum*: in *Dido regina erat* ("Dido was queen"), both *Dido* and *regina* are nominative because *erat* works like an equals sign, not an action verb. In practice, the nominative is your anchor when you untangle Latin [word order](/ap-latin/key-terms/word-order "fv-autolink"). Caesar and Vergil scatter words across a sentence, so you can't rely on position the way English does. The ending does the work. Dictionary entries list nouns in the nominative singular first (*puella, puellae, f.*), which is why it's also the form you use to look anything up. One warning baked into the system itself: in neuter nouns, the nominative and accusative forms are identical, so only the verb and context can tell you whether *bellum* is the subject or the object. ## Why It Matters [AP Latin](/ap-latin "fv-autolink") doesn't test grammar in isolation; it tests whether you can read Caesar's *Gallic War* and [Vergil](/ap-latin/unit-3 "fv-autolink")'s *Aeneid* with precision. Every literal translation on the exam starts with one question: what's the subject? The course's reading and translation skills depend on tracking case endings rather than English word order, and the nominative is the case that hands you the sentence's main actor. It also drives agreement, since adjectives and predicate nouns linked to the subject must match it in case. Misreading a nominative as an accusative (or vice versa) flips who is doing what to whom, which is exactly the kind of error that costs translation points in Units 1-8, whether Caesar's legions are attacking or being attacked. ## Connections ### [Case (Units 1-8)](/ap-latin/key-terms/case) The nominative is the first stop in the Latin case system. It's the citation form every dictionary entry leads with, and the baseline you compare every other case ending against when you parse a noun in [Caesar](/ap-latin/key-terms/caesar "fv-autolink") or Vergil. ### [Accusative (Units 1-8)](/ap-latin/key-terms/accusative) Nominative and [accusative](/ap-latin/key-terms/accusative "fv-autolink") are the subject-object pair. Latin word order won't tell you who acts and who receives, so the *-us* versus *-um* (or *-a* versus *-am*) ending difference is often the only thing separating "the queen loves" from "loves the queen." ### [Adjective Agreement (Units 1-8)](/ap-latin/key-terms/adjective-agreement) An [adjective](/ap-latin/key-terms/adjective "fv-autolink") describing the subject must also be nominative, matching it in case, number, and gender. This is how you link *fessi* back to the Trojans in Vergil even when six words sit between them. ### [Agreement (Units 1-8)](/ap-latin/key-terms/agreement) The nominative subject also controls the verb. A nominative plural subject demands a plural verb, so checking subject-verb agreement is a quick way to confirm you've found the real nominative and not a look-alike form. ## On the AP Exam No released FRQ asks you to define "nominative case," but the concept sits underneath almost every translation point. Literal translation FRQs are scored in segments, and each segment expects the subject rendered correctly. If you translate a nominative as if it were an object, that segment is gone. Multiple-choice questions on sight-reading passages routinely ask which word is the subject of a given verb or why a word takes the form it does, which is just nominative-spotting in disguise. Your move on test day: find the verb, then hunt for a nominative that agrees with it in number before committing to a translation. ## nominative case vs Accusative The nominative marks the subject (the doer); the accusative marks the direct object (the receiver). The trap is neuter nouns, where the two forms are identical, *bellum* could be either. When the endings can't decide, let the verb decide. A passive or intransitive verb usually means that ambiguous neuter is your nominative subject. ## Key Takeaways - The nominative case marks the subject of a finite verb, so it tells you who or what performs the action. - After linking verbs like sum, the predicate noun or adjective is also nominative, matching the subject (Dido regina erat). - Latin word order doesn't mark the subject; the nominative ending does, so always parse before you translate. - Neuter nouns have identical nominative and accusative forms, so use the verb and context to tell subject from object. - A nominative subject controls its verb's number and any adjectives describing it, making it the agreement hub of the sentence. - Dictionary entries list nouns by their nominative singular, so it's also the form you need for vocabulary lookup and study. ## FAQs ### What is the nominative case in Latin? It's the case that marks the subject of a sentence and the predicate noun or adjective after a linking verb like sum. In Caesar venit, the nominative Caesar is the one coming. ### Is the first word of a Latin sentence always the nominative subject? No. Latin word order is flexible, and Vergil especially loves putting objects or verbs first for emphasis. Only the ending (and verb agreement) tells you which word is the nominative subject. ### How is the nominative different from the accusative? Nominative = subject (doer), accusative = direct object (receiver). In regina militem videt, nominative regina sees and accusative militem is seen; swap the endings and the meaning flips. ### Why do nominative and accusative look the same for some nouns? All neuter nouns (like bellum or corpus) have identical nominative and accusative forms in both singular and plural. When you hit one, check the verb: if it's passive, intransitive, or already has another object, the neuter is probably your subject. ### Do I need to identify the nominative on the AP Latin exam? Yes, constantly. Translation FRQs are graded in segments that require the subject rendered correctly, and multiple-choice questions ask which word is the subject of a verb. Finding the nominative is step one of every accurate translation. ## Related Study Guides - [Multiple-Choice Questions (MCQ)](/ap-latin/ap-latin-exam/ap-latin-mcq/study-guide/ap-latin-mcq) ## Structured Data ```json {"@context":"https://schema.org","@graph":[{"@type":"LearningResource","@id":"https://fiveable.me/ap-latin/key-terms/nominative-case#resource","name":"Nominative Case — AP Latin Definition & Exam Guide","url":"https://fiveable.me/ap-latin/key-terms/nominative-case","learningResourceType":"Concept explainer","educationalLevel":"AP® / High School","about":{"@id":"https://fiveable.me/ap-latin/key-terms/nominative-case#term"},"audience":{"@type":"EducationalAudience","educationalRole":"student"},"dateModified":"2026-06-12T03:46:52.425Z","isPartOf":{"@type":"Collection","name":"AP Latin Key Terms","url":"https://fiveable.me/ap-latin/key-terms"},"publisher":{"@type":"Organization","name":"Fiveable","url":"https://fiveable.me"}},{"@type":"DefinedTerm","@id":"https://fiveable.me/ap-latin/key-terms/nominative-case#term","name":"nominative case","description":"The nominative case is the Latin case that marks the subject of a sentence (Caesar venit, \"Caesar comes\") and the predicate noun or adjective after a linking verb like sum. 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