Varastokomerossa pidän vanhaa matkalaukkua ja vanhaa takkia.

Varastokomerossa is the noun varastokomero plus the ending -ssa, which is the inessive case. The inessive usually means in or inside something.

• varastokomero = storage closet / storage cupboard
• varastokomerossa = in the storage closet

So this word shows the location without needing a separate word like in.

Yes. Varastokomero is a compound noun:

• varasto = storage, store room
• komero = cupboard, closet, small cabinet

Together they form varastokomero, meaning a storage closet or storage cupboard. Finnish uses compound words very often, much more freely than English.

Finnish word order is more flexible than English word order. Starting with Varastokomerossa puts the location first and gives it emphasis, something like:

• As for the storage closet, I keep...
• In the storage closet, I keep...

This is very natural in Finnish. A sentence like Pidän vanhaa matkalaukkua ja vanhaa takkia varastokomerossa is also possible, but it places the information differently.

Yes. The verb pitää has more than one common meaning.

1. pitää jostakin = to like something

   • Pidän kahvista. = I like coffee.
     Here the thing liked is in the -sta/-stä form.

2. pitää jotakin jossakin = to keep something somewhere / to hold something

   • Pidän avaimia laukussa. = I keep keys in the bag.

In your sentence, pidän means I keep, because it has objects and a location.

They are in the partitive singular:

• matkalaukku → matkalaukkua
• takki → takkia

This is a very common Finnish pattern with objects when the situation is seen as ongoing, uncompleted, or simply describing a state rather than a finished result. Here, the idea is that the speaker keeps those things in the closet; it is an ongoing situation, not a completed one-time action.

So the partitive fits naturally here.

In Finnish, adjectives usually agree with the noun they modify. That means they take the same case and number as the noun.

Here both nouns are in the partitive singular, so the adjective vanha also becomes partitive singular:

• vanha matkalaukku → vanhaa matkalaukkua
• vanha takki → vanhaa takkia

This kind of agreement is a basic and very important feature of Finnish grammar.

It is repeated to make it clear that both nouns are described as old.

• vanhaa matkalaukkua ja vanhaa takkia = an old suitcase and an old coat

If you said vanhaa matkalaukkua ja takkia, that would most naturally sound like an old suitcase and a coat, where only the first noun is explicitly described as old.

So repeating the adjective is the clearest and most normal way to show that both items are old.

Because each noun refers to one item:

• one suitcase
• one coat

Finnish does not make both nouns plural just because more than one thing is mentioned in the sentence. Each noun is singular or plural according to the item it refers to.

So:

• matkalaukkua = suitcase
• takkia = coat

If there were several suitcases and several coats, then plural forms would be used.

Finnish has no articles like English a, an, or the. Whether something is definite or indefinite is usually understood from context.

So vanhaa matkalaukkua could correspond to:

• an old suitcase
• the old suitcase

depending on the context. Finnish simply does not need an article word there.

The basic forms are:

• varastokomerossa → varastokomero
• pidän → pitää
• vanhaa → vanha
• matkalaukkua → matkalaukku
• takkia → takki

This is useful because in Finnish many words change form a lot, so learners often need to work backward from the sentence form to the dictionary form.

Yes, that is possible. It would still be grammatical and natural. The difference is mostly about focus and information order.

• Varastokomerossa pidän... puts the location first.
• Pidän varastokomerossa... starts more directly with the action.

Finnish lets you move sentence parts around more freely than English, as long as the forms make the roles clear.

No, it describes where the things are kept, not the action of moving them there.

That is one reason the sentence uses:

• a location form: varastokomerossa = in the storage closet
• the verb pitää = keep

If you wanted to talk about putting them into the closet, Finnish would normally use a different verb, such as laittaa.

Because ja is the normal Finnish coordinating conjunction meaning and. It joins the two object phrases:

• vanhaa matkalaukkua
• vanhaa takkia

So the structure is straightforward:

[location] + [verb] + [object 1] + ja + [object 2]