n. the shrubs and small trees forming the low growth of a wooded area.
- 1824  Every year we are . . . very particular upon the first fall of snow to sow my grass seed upon the lands intended for mowing or pasturage, and also to have a quantity of wood land under-brushed, and the underbrush piled for better accomodation of cutting our fire wood.
- 1942  Then he picked his way carefully . . . slipping sideways through the tangle of underbrush.