IPA: /kənˈsɪdərəblɪ/
KK: /kənˈsɪdərəbli/
To a large extent or degree; significantly.
The weather improved considerably after the storm.
Considerably → It is formed from "consider" (from Latin "considerare", meaning to examine closely) and the suffix "-ably" (meaning in a manner that is). The word "considerably" means in a manner that is worthy of consideration or significant.
Think of examining something closely ('consider') and then doing it in a significant way ('-ably'). This helps you remember that 'considerably' means something is significant enough to be worth considering.