gerontology

noun 0.689

gerontologist

noun 0.645

geriatrics

noun 0.623

oligarchy

noun 0.615

technocracy

noun 0.579

plutocracy

noun 0.575

plantocracy

noun 0.568

hierarchy

noun 0.563

eldership

noun 0.562

aristocracy

noun 0.557

theocracy

noun 0.553

ocracy

noun 0.551

patriarchy

noun 0.550

heterarchy

noun 0.550

timocracy

noun 0.548

presbytery

noun 0.545

elderhood

noun 0.544

matriarchy

noun 0.541

geriatrician

noun 0.539

meritocracy

noun 0.533

elderly

noun 0.533

hierarch

noun 0.532

kleptocracy

noun 0.531

bureaucracy

noun 0.520

polyarchy

noun 0.519

seniority

noun 0.518

autocracy

noun 0.518

aging

noun 0.516

ageism

noun 0.514

genro

noun 0.514

hierarchist

noun 0.512

presbyterate

noun 0.512

vicegerency

noun 0.505

governance

noun 0.504