accumulate

Synonyms: accrue acquire add to agglomerate aggregate amalgamate assemble bring together cache clean up collect collocate compile concentrate cumulate draw together expand gain gather grow heap heap together hoard incorporate increase load up lump make a bundle make a killing mass pile pile up procure profit rack up roll up round up scare up stack up stockpile store store up swell unite

Antonyms: disperse dissipate dwindle lessen lose spend squander waste