Το καλάθι ωρίμανσης είναι έτοιμο.

• Το = the for a neuter singular noun
• καλάθι = basket
• ωρίμανσης = of ripening / of maturation; it describes what kind of basket it is
• είναι = is
• έτοιμο = ready

So structurally, it is:

The basket of ripening is ready
or more naturally in English, The ripening/proofing basket is ready, depending on context.

Το is the definite article for a neuter singular noun in the nominative or accusative case.

Since καλάθι is a neuter singular noun, it takes το:

• το καλάθι = the basket

English has just one form, the, but Greek articles change depending on gender, number, and case.

In Greek, every noun has a grammatical gender: masculine, feminine, or neuter.
Καλάθι happens to be neuter.

A lot of nouns ending in -ι are neuter, so this fits a common pattern:

• το καλάθι
• το σπίτι
• το παιδί

This is grammatical gender, not biological gender. A basket is not neuter because of its meaning; it is neuter because that is how the noun behaves in Greek.

Ωρίμανσης is in the genitive singular.

Its dictionary form is ωρίμανση.
That is a feminine noun, and in the genitive singular it becomes ωρίμανσης.

So:

• η ωρίμανση = the ripening / maturation
• της ωρίμανσης = of the ripening / maturation

In this sentence, the genitive is used to connect the two nouns:

• καλάθι ωρίμανσης = ripening basket / basket for ripening

This is very common in Greek.

Because Greek often uses a bare genitive noun after another noun to show type, purpose, or association.

So:

• καλάθι ωρίμανσης sounds like a normal label or category: ripening basket, proofing basket, maturation basket

If you said:

• το καλάθι της ωρίμανσης

that would sound more like the basket of the ripening/maturation, referring to a very specific ripening process. It is grammatically possible in some contexts, but it is not the most natural way to name the object here.

Because adjectives in Greek must agree with the noun they describe in gender, number, and case.

The noun καλάθι is:

• neuter
• singular
• nominative

So the adjective must also be:

• neuter
• singular
• nominative

That gives:

• έτοιμος = masculine
• έτοιμη = feminine
• έτοιμο = neuter

Since καλάθι is neuter, Greek uses έτοιμο.

Είναι is the third person singular present tense of είμαι, meaning to be.

So here it means is:

• είναι έτοιμο = is ready

This matches the singular subject το καλάθι ωρίμανσης.

A useful note: unlike in some languages, Greek normally does not omit the verb to be in sentences like this. You need είναι.

Yes, in a practical sense it works a lot like a compound expression.

Greek often uses this pattern:

noun + genitive noun

to mean something like:

• a noun for
• a noun of
• a noun used in
• a noun connected with

So καλάθι ωρίμανσης functions much like an English compound such as:

• bread basket
• laundry basket
• proofing basket

It is not a single written word, but it behaves like a set phrase naming a type of object.

The given order is the most neutral and straightforward:

Το καλάθι ωρίμανσης είναι έτοιμο.

Greek word order is more flexible than English, so you can move things around for emphasis. For example:

• Έτοιμο είναι το καλάθι ωρίμανσης.

This still means the same thing, but it puts more emphasis on ready.

For a learner, the original order is the best default: subject + είναι + adjective

A rough pronunciation guide is:

to ka-LA-thi o-RI-man-sis EE-ne E-ti-mo

A few notes:

• θ in καλάθι sounds like th in think
• αι in είναι sounds like e
• the stressed syllables are marked by the written accents:
  • καλάθι
  • ωρίμανσης
  • έτοιμο

So the rhythm is roughly:

to ka-LA-thi o-RI-man-sis EE-ne E-ti-mo

You can do that to understand the grammar, but it will not always be the most natural English.

Greek often uses the genitive where English prefers:

• an adjective
• a compound noun
• for + noun
• a more specialized term

So depending on context, καλάθι ωρίμανσης might be translated as:

• ripening basket
• maturation basket
• proofing basket

The literal translation basket of ripening is useful for learning the structure, but it may sound unnatural in normal English.