Heavier is the comparative form of the adjective heavy, so it is called a comparative adjective.
The boy is heavier than the girl.
heavier, heaviest
heavier, heaviest
Heavier.heaviest
That is not a question, but a statement. Statements in English are suffixed by period (.), not question mark (?).heavy - heavier - heaviest
The superlative of "shine" is "shiniest."
heavier, heaviest
heavier, heaviest
heaviest
heaviest, heavier
Heavier.heaviest
heavier, heaviest
heavier, heaviest
Heavier is the comparative adjective for heavy. The superlative is heaviest.
Comparative: heavy, heavier Superlative: heavy, heavier, heaviest
heavier, heaviest
heavier, heaviest
heaviest, heavier