adj.
Superlative of late.
n.
Something that is the most recent or current of its kind: the latest in electronic gadgetry.
idiom:
at the latest
- No later than: Have it done by Tuesday at the latest.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.