Definition of count on/upon
1 : to trust (someone) : to rely or depend on (someone) to do something He isn't someone you can count on all the time. I am counting on you to help me through this difficult time.
2 : to expect (someone) to do something I wouldn't count on him to win the match.
3 : to expect (something) to happen My parents might lend me some money, but I can't count on it. The kids are counting on going to the movies. Don't disappoint them!
Word by Word Definitions
: to indicate or name by units or groups so as to find the total number of units involved : number
: to name the numbers in order up to and including
: to include in a tallying and reckoning
: the action or process of counting
: a total obtained by counting : tally
: reckoning, account
: a European nobleman whose rank corresponds to that of a British earl
: on the surface : on it
: thereafter, thereon
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