This is the 15595th most frequent German word.
weißes
"White" (adjective) or "know" (verb, 1st/3rd person singular subjunctive/indicative of "wissen").
In this sentence, 'weißes' serves as an adjective modifying the neuter noun 'Haus' in the accusative singular case.
Ich sehe ein weißes Haus.
I see a white house.
Here, 'weißes' describes the neuter noun 'Pferd' in the nominative singular case.
Das ist ein weißes Pferd.
That is a white horse.
In this example, 'weißes' is used with the neuter noun 'Kleid' in the accusative singular case.