adj. 1 vacant, empty, void, unfilled A hollow space in the wall concealed a secret passage 2 sunken, concave, indented, dented, sunken, recessed, depressed Dust gathers in the hollow places of the floor 3 hungry, ravenous, starved, empty, famished I'm feeling hollow and should prefer to eat now, not later 4 insincere, false, hypocritical, sham, artificial, counterfeit, feigned, fraudulent, spurious, deceitful, mendacious, deceptive, cynical Politicians campaigning for office often make hollow promises they do not intend to keep 5 empty, futile, costly, Pyrrhic, worthless, vain, unavailing, bootless, fruitless, profitless, unprofitable, valueless, ineffective, pointless, senseless, meaningless Winning the lawsuit was a hollow victory, for the man was bankrupt 6 muffled, dull, flat, low, sepulchral, toneless His voice sounded hollow, as if he were speaking into a metal bowl
n. 7 hole, cavity, cavern, crater, basin, depression, excavation, pit, trough, furrow, indentation, dent, impression; valley, dale, dell, glen, dip We dug ourselves in a hollow in the ground hoping not to be seen The dog herded the sheep into the hollow near the stream.
v. 8 excavate, dig (out or up), gouge, scoop, furrow, dredge Huskies hollow out places for themselves to sleep in the snow