Compose, assemble, as in There's more to devising an effective slogan than stringing together some words. This expression alludes to threading beads on a string. [First half of 1800s]
Words nearby string together
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.