IPA: /ˈlʌk.i.ɪst/
KK: /ˈlʌk.i.ɪst/
The one who has the most good fortune or favorable outcomes compared to others.
She felt like the luckiest person in the world after winning the lottery.
Comparative: luckier
Superlative: luckiest
Luckiest → It is formed from "luck" (from Middle Dutch *luk*, meaning fortune or chance) and the superlative suffix "-iest" (meaning most). The word "luckiest" means having the most fortune or chance compared to others.
Think of 'luck' as fortune and remember that 'luckiest' means having the most fortune.