When comparing items, you often want to refer back to a noun without repeating it. In English, we use the placeholder word "one"—as in, "the white stove or the stainless one".
In Swedish, you do not use a placeholder word at all. You simply drop the noun entirely, leaving just the freestanding definite article (den or det) and the definite adjective (which usually ends in -a).
| Do you prefer the white stove or the stainless one? | Föredrar du den vita spisen eller den rostfria? |
| I actually bought the stainless one. | Jag köpte faktiskt den rostfria. |
Matching the Gender
Even though the noun is "invisible," the article you use must still match its gender. Use den when referring back to an en-word (like a stove or dishwasher) and det when referring back to an ett-word (like a fridge). The adjective keeps its definite -a ending either way.
| We need to replace the dishwasher, but the new one is unfortunately too expensive. | Vi behöver byta diskmaskinen, men den nya är tyvärr för dyr. |
| Is that fridge the energy-efficient one? | Är det där kylskåpet det energisnåla? |
Using "This One" and "That One"
You can also apply this exact same pattern with demonstratives like den här (this) and den där (that). Just pair the demonstrative directly with the definite adjective, and leave the noun out.
| We are looking at washing machines, and I prefer this quiet one. | Vi tittar på tvättmaskiner, och jag föredrar den här tysta. |