IPA: /ˈfɜːrmɪst/
KK: /fɜrmɪst/
The strongest or most solid version of something, often used to describe something that is not soft or weak.
She gave the firmest handshake I had ever experienced.
Comparative: firmer
Superlative: firmest
Firmest → It is formed from "firm" (from Latin "firmus", meaning strong or stable) and the superlative suffix "-est" (meaning most). The word "firmest" means the most strong or stable.
Think of 'firm' meaning strong, and when you add '-est', it indicates the highest degree of strength. So, 'firmest' means the most strong.