Từ điển Hán Nôm

(1) lit. Ying writes a letter and Yan reads it
(2) fig. to misinterpret the original meaning
(3) to pile up errors
(4) refers to the letter from capital 郢[Ying3] of 楚[Chu3] in which the inadvertent words "hold up the candle" are mistaken by the minister of 燕[Yan1] as "promote the wise"