- (adverb when intr, often foll by on) to acquire information about (a subject) by reading intensively
Related Wordsponder, consider, read, examine, learn, think, plug, plunge, lucubrate, inquire, peruse, dig, mind, refresh, grind, tutor, meditate, weigh, cram, cogitate
Idioms and Phrases with read up
Study or learn by reading, as in I don't know much about childhood illnesses, but I can always read up on them. [First half of 1800s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.