What is the meaning of the word "dead"?

Definitions:

a time when coldness (or some other quality associated with death) is intense noun
- the dead of winter
devoid of activity adjective
- this is a dead town
lacking acoustic resonance adjective
- dead sounds characteristic of some compact discs
lacking resilience or bounce adjective
- a dead tennis ball
no longer having force or relevance adjective
- a dead issue
no longer having or seeming to have or expecting to have life adjective
- the nerve is dead
not surviving in active use adjective
- Latin is a dead language
not yielding a return adjective
- dead capital
out of use or operation because of a fault or breakdown adjective
- a dead telephone line
people who are no longer living noun
- they buried the dead
physically inactive adjective
- Crater Lake is in the crater of a dead volcano of the Cascade Range
unerringly accurate adjective
- a dead shot