(of the sun, moon) to disappear below the horizon
undertaking, course of action
Cases of word usage
1) to come or go down (something) (descend)
2) to be or go down on one's knees (kneel)
3) a basin in a kitchen used for washing up etc; (to cause a person, ship etc) to go down below the surface of the water (sink)
4) a kind of small bird with a forked tail; to cause (food) or allow to go down the throat (swallow)
