Tervetuloa kotiimme!

Tervetuloa is a fixed Finnish welcome expression. For a learner, the easiest way to treat it is simply as the standard word used to welcome someone.

Historically, it is connected to terve and tulo, and grammatically it is an old set form, but in modern Finnish you do not usually need to build it yourself. You just learn tervetuloa as the normal expression.

Because tervetuloa normally stays the same. Finnish does not change this word for singular vs. plural addressees in the way English might make you expect.

So you can say Tervetuloa! to:

• one guest
• several guests
• a whole group

If you want, you can add names or other words to make it clearer who is being welcomed, but tervetuloa itself usually does not change.

-mme is the possessive suffix meaning our.

So in kotiimme, Finnish is expressing our home by attaching the idea of our directly to the noun, instead of always using a separate word like English does.

This is very common in Finnish:

• kotini = my home
• kotisi = your home
• kotimme / kotiimme = our home / to our home, depending on the case form

Kotiimme is in the illative case, which often expresses movement into or to something.

The basic form is koti.
A common motion form is kotiin = to home / homeward.
With the possessive suffix, you get kotiimme = to our home.

That case is used because welcoming is understood as welcoming someone to a place, not just talking about the place in a neutral way.

Because the possessive suffix -mme already tells you that it means our.

So kotiimme by itself is enough.

You can also say meidän kotiimme, but then meidän adds emphasis or explicitness. In other words:

• kotiimme = natural, complete
• meidän kotiimme = also correct, slightly more explicit or emphatic

Because Finnish often builds meaning by adding endings directly to a word.

Here you have:

• the noun koti
• a case ending
• the possessive suffix -mme

Finnish combines these into one written word: kotiimme.

This is very normal in Finnish. English often uses separate words; Finnish often packs the same information into endings.

Because Finnish does not have articles like English a, an, and the.

So Finnish simply says kotiimme without needing an article. Context tells you whether English would use a, the, or no article at all.

This is one of the big differences between English and Finnish.

Because this sentence is about direction: welcoming someone to your home.

• kotiimme = to our home
• kotonamme = at our home
• kodissamme = in our home / in our house

With tervetuloa, Finnish normally uses the form meaning movement toward the place, so kotiimme is the natural choice.

In Finnish, double letters matter. They are pronounced longer than single letters.

So in kotiimme:

• ii is a long i
• mm is a long m

That means the pronunciation is different from a form with single letters. In Finnish, vowel and consonant length can change meaning, so it is important to notice them.

Yes.

Tervetuloa kotiin! is also a normal sentence, but it is less specific. It means something like welcome home or welcome to the home in a more general sense.

Tervetuloa kotiimme! is more specific because it clearly points to our home.

So the difference is mainly:

• kotiin = home, more general
• kotiimme = to our home, specifically the speaker’s home

It is generally neutral and perfectly natural.

It sounds warm, polite, and standard. Because it uses the possessive suffix -mme, it may feel a bit more standard or written than very casual everyday speech, where people might say things like Tervetuloa meidän kotiin! in colloquial Finnish.

But the sentence Tervetuloa kotiimme! is completely normal and a very good model for learners.