down

filled with melancholy and despondency

gloomy at the thought of what he had to face

gloomy predictions

not functioning (temporarily or permanently)

we can't work because the computer is down

(American football) a complete play to advance the football

you have four downs to gain ten yards

English physician who first described Down's syndrome (1828-1896)

you have four downs to gain ten yards

soft fine feathers

fine soft dense hair (as the fine short hair of cattle or deer or the wool of sheep or the undercoat of certain dogs)

(usually plural) a rolling treeless highland with little soil

improve or perfect by pruning or polishing

refine one's style of writing

bring down or defeat (an opponent)

eat immoderately

Some people can down a pound of meat in the course of one meal

drink down entirely

He downed three martinis before dinner

She killed a bottle of brandy that night

cause to come or go down

The policeman downed the heavily armed suspect

The mugger knocked down the old lady after she refused to hand over her wallet

shoot at and force to come down

the enemy landed several of our aircraft