Any language, explain what it means if it’s not English.
For example (as a non-native speaker) I’ve always liked the English word ‘unprecedented’, mostly in the context of fiction. Especially if it paints some entity to be really mystical or wondrous or it’s own never before seen order of magnitude in any way.
We have a concept of word inflection, which can be used to replace a lot of words that English would use to denote something being a question, ownership markers, causes and effects etc.
Compounds are fun too, since you can do chaining:
Viskibassokitaravahvistinpiiri
Whisky base guitar amplifier circuit
I don’t speak Finnish, but I believe a good example for such an inflection is how in English you can glue an -s to words to make them plural. In some other languages, you say “many word” instead, because they don’t have such an inflection.