0 If a group of plants, animals, or people dies off, all of that group dies over a period of time. --
1 (of the members of a group) to stop living, one by one, until there are none left: --
Well known for the lovely autumnal tints displayed by the foliage when dying off.
The tubers may be transplanted soon after the tops have died off in late summer.
Most of 'em had died off and the rest had joined Wild West shows.
I hear that my old men and children are dying off like sheep.
