culvert, underground drainage ditch; underground drain; covered drain, underdrain

dark; dim / sombre; gloomy

the last volume in a two- or three-volume set

big, large, great

a ditch / a groove / a gulf; a gap / disagreement between people / 10^38, hundred undecillion (American), hundred sextillion (British)

gutter / ditch / groove / furrow

road, street, a way for local traffic

dark / blackish / foolish / secret; covert / memorize; recite from memory

darkness

darkness