Questions & Answers about Высокий дом стоит на этой улице.
In Russian, adjectives agree with the noun in gender, number, and case.
- Дом is:
- masculine
- singular
- nominative (it’s the subject of the sentence)
The standard nominative masculine singular ending for adjectives is -ый / -ий, so:
- masculine: высокий дом
- feminine: высокая улица
- neuter: высокое здание
So высокое дом and высокая дом are ungrammatical because the gender endings don’t match дом (masculine).
Дом here is in the nominative singular.
Clues:
- It is the subject of the verb стоит (who/what is standing? the house).
- The basic dictionary form of a noun is nominative singular, and дом appears in exactly that form.
- The verb agrees with it in number (singular: стоит, not стоят).
So: subject → nominative → дом.