down-the-line

[ doun-thuh-lahyn ]
/ ˈdaʊn ðəˈlaɪn /

adjective

complete, full, unreserved, or whole-hearted: a down-the-line endorsement.

adverb

fully; completely; whole-heartedly: Will you support it down-the-line?

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Origin of down-the-line

First recorded in 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Idioms and Phrases with down-the-line

down the line

1

Also, all along the line. All the way, throughout. For example, We've found numerous errors down the line. The first term dates from the mid-1900s, the variant from the second half of the 1800s.

2

Also, down the road. At a future point or end. For example, Somewhere down the road I think he'll be elected to high office. [Second half of 1900s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.