B1
used before comparative adjectives such as "better" and "more beautiful" to mean "a lot"
Dictionary examples:
After the haircut, my dog looked much more handsome than me. (0.0)
My cat thinks she's much more important than the president. (0.0)
My little sister's toy car is much faster than my real one. (0.0)
It's a much more beautiful city. (12.6)
That's a much better idea. (13.2)
Their old house was much bigger. (23.1)