Filia matri monile et fibulam ostendit.

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

• filia = daughter
• nominative singular of filia, -ae

So filia is the daughter, the one doing the action of showing.

Latin often expresses to by using the dative case instead of adding a separate word.

• mater = mother
• matri = to/for the mother (dative singular)

So matri means to the mother or for the mother without needing a separate word for to.

They are both direct objects, but they belong to different kinds of nouns, so their accusative forms look different.

• monile is a neuter third-declension noun
  
  • nominative singular: monile
  • accusative singular: monile
• fibula is a feminine first-declension noun
  
  • nominative singular: fibula
  • accusative singular: fibulam

So both words are objects of ostendit, even though only fibulam has a clearly different accusative ending.

Because monile is a neuter noun. In Latin, neuter nominative singular and neuter accusative singular are often identical.

So:

• nominative singular: monile
• accusative singular: monile

That is completely normal for neuter nouns.

Because fibula is a first-declension feminine noun, and the accusative singular ending for that pattern is usually -am.

So:

• fibula = nominative singular
• fibulam = accusative singular

Since it is one of the things being shown, it appears in the accusative.

Et means and, and here it connects the two direct objects:

• monile
• fibulam

So the daughter is showing a necklace and a brooch to the mother.

Classical Latin has no articles like English the or a/an.

So a noun like filia can mean:

• a daughter
• the daughter

and monile can mean:

• a necklace
• the necklace

Which one sounds best depends on context and on the translation being used.

Yes. Latin word order is much freer than English word order because the endings show each word’s function.

This sentence could appear in other orders, for example:

• Filia monile et fibulam matri ostendit.
• Matri filia monile et fibulam ostendit.
• Monile et fibulam filia matri ostendit.

These all keep the same basic meaning. The choice of order can change emphasis or style, but the case endings still show who is doing what to whom.

Ostendit is from ostendo, ostendere, meaning show.

In form, ostendit can be either:

• present tense: he/she/it shows
• perfect tense: he/she/it showed / has shown

So by itself, ostendit is ambiguous. Context tells you which tense is meant.

In this sentence, since the meaning has already been given to the learner, you follow that translation. But grammatically, the form itself could be read in either way.

Because the nominative plural of filia would be filiae, not filia.

So:

• filia = daughter (singular)
• filiae = daughters (plural), or sometimes other case forms depending on context

Also, ostendit is a third-person singular verb form, which matches a singular subject.

Yes. In English, the indirect object is the person to whom something is shown. In Latin, that role is usually expressed with the dative case.

So in this sentence:

• filia = subject
• monile et fibulam = direct objects
• matri = indirect object

The structure is essentially:

The daughter shows the necklace and the brooch to the mother.

Not always word-for-word, but you should understand its function as a dative.

Depending on the verb and the English style, a dative can be translated in different ways. Here, the most natural translation is usually to the mother.

So matri is not literally a separate word meaning to, but it carries that idea through its case ending.