IPA: /sɪˈkjʊərɪst/
KK: /sɪˈkjʊrɪst/
The highest level of safety or protection; the most free from danger or risk.
This is the securest place to keep your valuables.
Comparative: more secure
Superlative: securest
Securest → It is formed from "secure" (from Latin "securus", meaning free from care or safe) and the superlative suffix "-est" (meaning most). The word "securest" means the most free from care or the safest.
Think of being the 'safest' or 'most free from worry' — 'secure' means safe, and adding '-est' shows it's the highest degree.