Avia nepoti veritatem dicit.

Because avia is in the nominative singular, the case normally used for the subject of the sentence.

The dictionary form is avia, a first-declension noun meaning grandmother. In this sentence, the grandmother is the one doing the action of speaking, so Latin puts her in the nominative:

• avia = grandmother, as subject

English usually shows the subject mainly by word order, but Latin often shows it by the noun ending.

Because nepoti is in the dative singular, which is often used for the indirect object: the person to whom something is given, said, shown, told, and so on.

Here the verb is dicit, says/tells, and the grandson is the recipient of what is said:

• nepoti = to the grandson

The noun comes from nepos, nepotis, meaning grandson. Its dative singular form is nepoti.

So:

• avia = the speaker
• veritatem = the thing spoken
• nepoti = the person spoken to

Because veritatem is in the accusative singular, the case commonly used for the direct object.

The word comes from veritas, veritatis, meaning truth. In this sentence, the truth is the thing being said, so it appears in the accusative:

• veritatem = truth, as the direct object

A useful pattern is:

• nominative = subject
• dative = indirect object
• accusative = direct object

This sentence is a very clear example of that pattern.

Dicit is the third-person singular present active indicative of dico, dicere, meaning say or tell.

So dicit means:

• he says
• she says
• it says

Here, because the subject is avia, it means she says or she tells.

Depending on context, Latin present tense can often be translated in more than one natural English way:

• the grandmother says the truth to the grandson
• the grandmother tells the grandson the truth
• the grandmother is telling the grandson the truth

All of those can fit dicit.

Latin does not have definite or indefinite articles like English the and a/an.

So:

• avia can mean grandmother, a grandmother, or the grandmother
• nepoti can mean to a grandson or to the grandson
• veritatem can mean truth, a truth, or the truth

Which English article to use depends on context and on what sounds most natural in translation.

It matters less in Latin than in English, because the endings already show the grammatical roles.

In Avia nepoti veritatem dicit:

• avia is nominative, so it is the subject
• nepoti is dative, so it is the indirect object
• veritatem is accusative, so it is the direct object
• dicit is the verb

Because of those endings, Latin could rearrange the words without changing the basic meaning, for example:

• Avia veritatem nepoti dicit
• Veritatem avia nepoti dicit
• Nepoti avia veritatem dicit

The emphasis may shift a little, but the core meaning stays the same.

Latin often puts the verb near or at the end of the sentence, especially in simple textbook-style examples. That is a very common Latin pattern, though it is not a strict rule.

So this sentence follows a common arrangement:

• subject: avia
• indirect object: nepoti
• direct object: veritatem
• verb: dicit

English usually prefers the verb earlier, but Latin often saves it for the end.

Yes. The Latin present tense often covers both a simple present and a present progressive idea.

So dicit can be translated as:

• says
• is saying
• sometimes tells or is telling, depending on context

Latin does not always make the same distinction English makes between she says and she is saying.

Because they belong to different declensions and different cases.

Here are the dictionary forms and what is happening in the sentence:

• avia, aviae = first declension

  • avia = nominative singular

• nepos, nepotis = third declension

  • nepoti = dative singular

• veritas, veritatis = third declension

  • veritatem = accusative singular

Latin changes noun endings to show their role in the sentence. English usually uses word order and prepositions instead, so this can feel unfamiliar at first.

English has two common ways to express an indirect object:

• The grandmother tells the truth to the grandson
• The grandmother tells the grandson the truth

Latin uses the dative case for that recipient idea. So even if English sometimes leaves out to, Latin still marks the role with the dative ending:

• nepoti = to the grandson / the grandson as indirect object

So the Latin grammar is more explicit in the noun ending than English is.

Yes, it is understandable and straightforward: literally says the truth or more naturally tells the truth.

With dico, Latin commonly uses a direct object for the thing said. In English, we often choose the more natural wording tell the truth rather than say the truth, but the Latin itself is perfectly regular:

• veritatem dicit = she speaks/says the truth
• natural English: she tells the truth

So when translating, it is often best to choose the most natural English expression rather than translating each word mechanically.