brazen

inner container (e.g. the rice pot inside a rice cooker, the vacuum bottle inside a thermos, the tank inside a hot water heater, the bladder of a football)

to act boldly

to get one’s courage up

cowardice

courage

to dare (negative connotation)

courage and insight

(zoology) sea urchin

timidity

one who is extremely familiar with the surroundings; a local

adj; fearless; brave; courageous

a tube amplifier

stalk of vegetable

daring or brave enough

gallstone

describes a person who is very daring in doing something

(noun) a light bulb

(adjective) cowardly; timid

(courteous) to be so bold as to

Light bulb (white, milky color)

openly and without fear

gall

gallbladder