Enumerating.
You have not given me the word list so I cannot find the best fit.
Carnivore.
Guillotine.
Introspective means looking inward.
Very sharp best fits the word razor sharp.
Vegetation.
Enumerating.
the middle kingdom
You have not given me the word list so I cannot find the best fit.
they will all died
You have not given me the word list so I cannot find the best fit.
average velocity
Carnivore.
Guillotine.
A mother.
The one-word palindrome that best fits that definition would be peep.