西の対

Etymology
A compound of made up of 西|nishi "west" and 対|tai "opposing" joined by the genitive grammatical particle の|no. Opposition is in reference to the main building in the center.

Noun

 * 1) In a shindenzukuri style building, the secondary building located to the west of the main shinden. The western pavilion.
 * 2) * Late 10th century: Ochikubo Monogatari
 * 大君、中の君には婿取りして、西の対、ひんがしの対にはなばなとして住ませたてまつり給に

Usage notes
Japanese nobility during the Heian period lived in structures known as shindenzukuri. The main building was located in the center and it faced the south. Secondary buildings, also known as pavilions, were placed on the west, east, and north.