function
adult
aged
ageing
aging
atrophy
biology
brain
community
corruption
damage
dead
decay
decline
degenerate
degeneration
degenerative
degradation
distress
downfall
downgrade
ecology
forbid
functionality
human
language
life
local
man
mankind
morality
nation
nationality
old
people
population
problem
regress
regression
reincarnation
social
society
state
stop
teenager
word