hush

(poetic) tranquil silence; "the still of the night"

become quiet or still; fall silent; "hush my baby!"

cause to be quiet or not talk; "Please silence the children in the church!"

become quiet or quieter; "The audience fell silent when the speaker entered"

wash by removing particles; "Wash ores"

run water over the ground to erode (soil), revealing the underlying strata and valuable minerals