move downward and lower, but not necessarily all the way; "The temperature is going down"; "The barometer is falling"; "The curtain fell on the diva"; "Her hand went up and then fell again"
to the greatest degree or extent or most advanced stage (`furthest' is used more often than `farthest' in this abstract sense); "went the furthest of all the children in her education"; "furthest removed from reality"; "she goes farthest in helping us"
something that provides an important central source for growth or development; "the taproot of his resentment"; "genius and insanity spring from the same taproot"
(botany) main root of a plant growing straight downward from the stem