Thesaurus.com
Dictionary.com

build upon

VERB
depend
Synonyms
WEAK
bank on bet bottom dollar on bet on calculate on confide in gamble on lay money on lean on reckon on trust in turn to
VERB
rely on
Synonyms
STRONGEST
bank on believe in count on depend on trust turn to
WEAK
bet bottom dollar on bet on calculate on confide in gamble on lay money on lean on reckon on trust in
Antonyms
STRONGEST
disbelieve distrust mistrust