Meanings

internal organs such as heart, liver, kidneys used as food

red giant (star)

red shift

to be tinged red

aka-e

Red Crescent Society

Red Crystal (politically and religiously neutral emblem used by the International Committee of the Red Cross)

red string of fate

to take candy from a baby

to take candy from a baby

Coalition Red Army (defunct Japanese armed militant group)

Japanese Red Army

failing mark (e.g. in exam)

willowherb (Epilobium pyrricholophum)

red deer (Cervus elaphus)

red kangaroo (Osphranter rufus)

blackthroat seaperch (Doederleinia berycoides)

redlip mullet (Chelon haematocheilus)

Pacific ocean perch (Sebastes alutus)

bright red