dollar /ˈdɑːlɚ/ noun
plural dollars
plural dollars
Learner's definition of DOLLAR
: a basic unit of money in the U.S., Canada, Australia, and other countries that is equal to 100 cents
: a bill or coin that is worth one dollar
see also half-dollar, top dollar
the dollar technical : the value of a dollar when it is compared to another unit of money
[count] : money that is from a specified source or used for a specified purpose
usually plural

bet your bottom dollar

see 2bet

look/feel like a million dollars

see million
see also sand dollar