草莱: / 爽籟: the refreshing sound of the autumn wind

(organic chemistry) acenaphthene

soot (fine particles of amorphous carbon and tar) / sooted dirt or dust accumulated in ceilings, walls, etc. / Short for 煤色 (susuiro): a shade of black as in the color of soot

Kyūjitai form of 雰囲気: mood