1
general::
Phrase(s): count (up)on someone or something
to rely on someone or something. (Upon is formal and less commonly used than on.) • Can I count upon you to do the job? • You can count on me., Phrase(s): count on someone or something
to rely on someone or something; to depend on someone or something. • We can count on Bill to get the job done. • Can I count on this car to start every morning of the year?
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Also, count upon. Rely on, depend on, as in You can always count on Kent to be punctual, or Carol was counting upon getting a raise in spring. [First half of 1600s]
American Heritage Idioms