Grasp, obtain; also, get in touch with. For example, If you can just get hold of one end, I'll get the other, or Jane had no luck getting hold of the book she needed, or I've phoned a dozen times but I can't seem to get hold of him. [c. 1300] Also see lay hold of.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.