lose blood from the body as a result of injury or illness

the cut was bleeding steadily

some casualties were left to bleed to death

the bleeding has stopped now

draw blood from (someone), especially as a former method of treatment in medicine

he didn't bleed his patients with leeches

allow (fluid or gas) to escape from a closed system through a valve

open the isolating valves and bleed air from the pump chamber

(of a liquid substance such as dye or colour) seep into an adjacent colour or area

I worked loosely with the oils, allowing colours to bleed into one another