Roget's Thesaurus: Entry 167 (Posterity)

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#167. Posterity.-- N. posterity, progeny, breed, issue, offspring, brood, litter, seed, farrow, spawn, spat; family, grandchildren, heirs; great-grandchild.

child, son, daughter; butcha[obs]; bantling, scion; acrospire[obs], plumule[obs], shoot, sprout, olive-branch, sprit[obs], branch; off-shoot, off-set; ramification; descendant; heir, heiress; heir-apparent, heir- presumptive; chip off the old block; heredity; rising generation.

straight descent, sonship[obs], line, lineage, filiation[obs], primogeniture.

Adj. filial; diphyletic[obs].

Phr. "the child is father of the man" [Wordsworth]; "the fruit doesn't fall far from the tree", "like father, like son".