IPA: //ˈboʊldər//
KK: /ˈboʊldər/
More daring or courageous than someone or something else; showing a willingness to take risks or be confident.
She made a bolder choice by deciding to travel alone.
Bolder → It is formed from "bold" (from Old English "beald", meaning brave or daring) and "-er" (meaning one who). The word "bolder" refers to one who is more brave or daring than another.
Think of someone who is 'braver' or 'more daring' — 'bold' means brave, and '-er' indicates a person who has more of that quality.