Kpop 101: #-D Dongsaeng Posted by embeebee on May 19, 2011June 4, 2011 “Dongsaeng” is a Korean word for a younger sibling. It can be used for both boys and girls. SNSD's Taeyeon could call Seohyun "dongsaeng" since she is younger than her; Credit: Kpoplive.com. Share this: Click to share on Facebook (Opens in new window) Facebook Click to email a link to a friend (Opens in new window) Email Click to share on X (Opens in new window) X More Click to share on Tumblr (Opens in new window) Tumblr Click to share on Reddit (Opens in new window) Reddit Click to share on LinkedIn (Opens in new window) LinkedIn Like Loading... Related