Trapetum olivas frangit.

Because trapetum is a neuter second-declension noun. In Latin, many neuter nouns have the same form for nominative singular and accusative singular: -um.

So for trapetum:

• nominative singular: trapetum
• accusative singular: trapetum

That means the ending alone does not distinguish subject from direct object here. Instead, you identify it as the subject from the sentence structure and the fact that olivas is clearly accusative plural.

Olivas is the accusative plural of oliva, a first-declension noun.

Its basic forms are:

• nominative singular: oliva
• accusative singular: olivam
• nominative plural: olivae
• accusative plural: olivas

The accusative case is used for the direct object, so olivas shows what is being acted on.

You know mainly from the case endings.

• olivas is unmistakably accusative plural, so it is the direct object
• trapetum must therefore be the subject
• frangit is the verb

So the sentence breaks down as:

• trapetum = subject
• olivas = direct object
• frangit = verb

Even though English relies heavily on word order, Latin relies much more on inflection.

Frangit is:

• third person singular
• present tense
• active voice
• indicative mood

It comes from the verb frangere, meaning to break, smash, or crush.

So frangit means it breaks or it is breaking, depending on context.

Because the verb is third person singular, it matches a singular subject: trapetum.

Because the verb agrees with the subject, not with the object.

Here:

• subject: trapetum = singular
• object: olivas = plural
• verb: frangit = singular

So the sentence means that one trapetum acts on multiple olives.

This is the same basic rule as in English:

• The machine breaks the olives not
• The machine break the olives

Yes, it is normal, and yes, it could be changed.

The order trapetum olivas frangit is a very natural Latin arrangement, especially for a simple sentence. Latin often places the verb at the end.

Because Latin marks grammatical roles with endings, other word orders are also possible, such as:

• Olivas trapetum frangit
• Frangit trapetum olivas
• Olivas frangit trapetum

These would still mean the same basic thing, though the emphasis might change.

So unlike English, Latin word order is flexible, but not random.

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

So trapetum could mean:

• the trapetum
• a trapetum

and olivas could mean:

• the olives
• olives

Which one is best depends on the context.

This is very common in Latin, and learners from English often notice it quickly because English almost always needs some kind of article.

They belong to different declensions:

• trapetum is second declension, neuter
• oliva is first declension, usually feminine

That is why their endings look different:

• second-declension neuter nominative singular often ends in -um
• first-declension accusative plural often ends in -as

Recognizing declensions helps you identify case and number much faster.

Yes, by form alone, trapetum could be either nominative singular or accusative singular, because neuter second-declension nouns use the same form for both.

But in this sentence, olivas is already clearly an accusative plural object, so trapetum is understood as the subject.

If you saw trapetum in another sentence, you would have to use the context and the rest of the grammar to decide whether it was nominative or accusative.

A commonly taught Classical Latin pronunciation would be roughly:

• Trapetum: TRA-peh-tum
• olivas: oh-LEE-was
• frangit: FRAHN-git

A few notes:

• v is pronounced like English w in Classical Latin, so olivas sounds like oliwas
• g is always hard, as in go
• stress usually falls according to Latin stress rules; in these words, a learner will often hear:
  • TRApetum
  • oLIVas
  • FRANgit

Exact pronunciation can vary a little depending on whether you are using Classical or Ecclesiastical pronunciation.

The dictionary forms are usually given like this:

• trapetum, trapeti = a trapetum; a second-declension neuter noun
• oliva, olivae = olive; a first-declension noun
• frango, frangere, fregi, fractum = break, shatter, crush

Learners often want to know this because Latin dictionaries usually list:

• nouns by nominative singular + genitive singular
• verbs by their principal parts

Knowing the dictionary form helps you recognize how the sentence form was built.