Use vs. Utilize

Most people, judging by the number of times I see them misused, don’t know that utilize and use have different meanings.  They are not interchangeable.  You use an object for a purpose common to that object, while you might utilize an object for a purpose not common to that object. For instance you use a pen to write, but you might utilize a pen to perform an emergency tracheotomy.  You would use a dime to pay for a gumball but you might utilize a dime to tighten or loosen a screw.

Soldiers use a shovel:                          Soldiers utilize a shovel: