bulletproof

definition: not penetrable by bullets
example: bulletproof glass
speech part: adjective
synonyms:
definition: without flaws or loopholes
example:
speech part: adjective
synonyms: unassailable unshakable watertight
definition: to make bulletproof
example: I bulletproofed the car after the assassination attempt.
speech part: verb
synonyms:

bulletproof is explained and pronounced

How bulletproof is being used?