In German
dieser
Meaning: this
Example sentences
DieserStuhlistbequem.
This chair is comfortable.
IchmagdieseIdee.
I like this idea.
Grammar note
“Dieser” declines like “der/die/das” across gender and case: “dieser Stuhl” (masculine), “diese Idee” (feminine), “dieses Kind” (neuter). It's a der-word, so it takes the same endings as the definite article plus an “-ies-” marker.
Common mistake
Don't use the invariable “dies” alone before a noun — use the fully-declined “dieser/diese/dieses” matching the noun's gender and case (“dies” alone works only as a standalone pronoun, as in “Dies ist mein Haus”).
Quick check
Which German word means “this” (masculine)?
More words on this topic
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Practise it in a lesson →Frequently asked questions
Does “dieser” change with gender?
Yes — “dieser” (masc.), “diese” (fem.), “dieses” (neut.), following the same pattern as “der/die/das”.
What's the difference between “dieser” and bare “dies”?
“Dies” alone works as a standalone pronoun (“Dies ist...”); before a noun you need the declined form, “dieser/diese/dieses”.