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To completely overtake a competitor.
Definition source: English Wiktionary via Wiktextract
Usage: idiomatic, informal
Examples
- The company has currently no plans to switch away from the old designs, so they could very easily be left in the dust.
Meaning relationships
Synonyms: leave for dust
Antonyms: none provided
To abandon; to leave behind.
Definition source: English Wiktionary via Wiktextract
Usage: dated
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Originally (from 17th c.), to leave in the dust meant to abandon or leave something/someone behind - literally or figuratively on the dirt ground. In modern usage (since late 19th c.), the sense has shifted to one about being overtaken by a competitor, the allusion changing to being left in the airborne dust that has been kicked up by a faster runner, horse, or vehicle.