1D
1D definition by Slang.net
This page explains what the acronym "1D" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
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1D is a common way to abbreviate the name of the popular English-Irish pop band, "One Direction." Band members include Niall Horan, Liam Payne, Harry Styles, and Louis Tomlinson. Zayn Malik was an original member but he left in 2015 to start a solo career.