Simple Definition of bold
: not afraid of danger or difficult situations
: showing or needing confidence or lack of fear
: very confident in a way that may seem rude or foolish
Full Definition of bold
Examples of bold in a sentence
Few politicians have been bold enough to oppose the plan to cut taxes.
It's a bold plan that might fail.
Hiring a novice was a bold move.
He punished the bold child for talking back.
I'd like to offer a few criticisms, if I may be so bold.
She wore a dress with bold stripes.
The painting is done in bold colors.
Origin of bold
Middle English, from Old English beald; akin to Old High German bald bold
First Known Use: before 12th century
Definition of bold
First Known Use of bold
BOLD Defined for Kids
Definition of bold for Students
Medical Definition of BOLD
blood oxygenation level-dependent; blood oxygen level-dependent ◆BOLD is used to describe imaging signals and methods that measure changes in the magnetic properties of hemoglobin accompanying changes in blood oxygen levels. BOLD functional magnetic resonance imaging is dependent on oxygen levels and is used especially in the study of brain function to produce images showing blood flow indicative of neural activity.
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