Learn Finnish: Sensuurin takia elokuva takavarikoitiin. - Because of censorship, the movie was confiscated.

This is the passive object rule in action! Normally, a total object takes the -n ending. However, when the verb is passive like takavarikoitiin (was confiscated), the object drops the -n and looks identical to the dictionary form.

Why does the word for censorship (sensuuri) have an -n ending here?

It is in the genitive case because of the word takia (because of). Takia is a postposition, and in Finnish, most postpositions require the noun that comes right before them to be in the genitive case.

How do we get takavarikoitiin from the dictionary form takavarikoida (to confiscate)?

Takavarikoida is a verb type 2 (ending in -da). To form the passive past tense, you drop the -da to get the stem takavarikoi-, and then add the passive past ending -tiin.

Takavarikoida is a long word. Is it built from smaller parts to make it easier to remember?

Yes! It comes from the noun takavarikko (confiscation). You can see the parts taka- (back or rear) and varikko (depot or storage). By adding the suffix -ida, it turns into the verb meaning to confiscate.