This puzzle is about
false friends: words which mean different things in different languages.
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In HungarianCroatian (or Hungarian), "apartmanapartman" means apartment (flat).
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Apparently this is supposed to be ???Old English, because eelpout is an old word for burbot. Mehhhhh. (Thanks @hagfy!)
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Presumably in some language "fast"In Norwegian, "fast" means everlasting?permanent (thanks @ManyPinkHats!)
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Presumably in some language "smoking"In French, "smoking" apparently means suit?tuxedo (thanks @Kant1!)
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In PolishUkrainian (or Russian or Polish etc.), "bratbrat" means brother.
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In Swedish, "kiss" means urine.
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In Indonesian, "air" means water.
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In Norwegian, "fart" means speed.
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In German, "gift" means poison.
So the answer is
H???RSINGCONFUSING