The adjective hoch (high)
The adjective hoch (high) is spelt thus ONLY in the predicative form ( ie., they occur within the predicate of the sentence and not immediately BEFORE the noun.);
when inflected, the "c" disappears.
1. ein hohes Gebäude ( a tall building )
2. die hohen Berge ( the high hills )
The principle behind the differences in adjectives is that if the word BEFORE the adjective does NOT indicate the gender and case, then the adjective must perform this function of indicating the gender and case;
this is why the STRONG declension in adjective shows much more variation than the WEAK.