(intr, preposition) to rely or depend on
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use count on in a sentence
My job, then, becomes one of rock solid, you-can-count-on-me reassurance.
I can never think of him but as my dear, old, solid, yours-to-count-on Dave Gemmell.The Making of Mary | Jean Forsyth
Other Idioms and Phrases with count on
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]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.