Employ
As the name implies, the Cold War involved very little shooting. Infantry weapons played no substantial role. Hot wars, such as Vietnam and Afghanistan DID employ Infantry weapons.
It means to use or employ while carrying out a task.
This question makes no sense as it is written. AA does not employ commercial airliners (you mean airlines??). What does it even mean to "employ a commercial airliner"? AA is a commercial airline. It employs employees.
"Waddling" is the present participle of "waddle", to employ a swaying gait.
weapons
Im looking into starting my own security company and may employ persons with concealed weapons permits....how do obtain insurance for such business?
If you mean "What does the Latin verb from which 'employ' is derived mean?", then the word is derived (through several changes) from implicare, which means "to enfold, involve, be connected with". So, if you're employed by a company, then you're connected to/involved with/enfolded into that company.
The mean animals of the nature.
To employ a person to perform duties specified by the employer.
I wouldn't employ myself to answer this, even were I in a grammarian's employ!
Is means to destroy with nuclear weapons. Destroy by using nuclear weapons of mass destruction!