1.  utilization(n = noun.act) employment, exercise, usage, use, utilisation - the act of using; "he warned against the use of narcotic drugs"; "skilled in the utilization of computers"
is a kind of activity
has particulars: practice, play, abuse, misuse, development, exploitation, recycling, application, practical application
Derived form verb utilize₁

2.  utilization(n = noun.state) - the state of having been made use of; "the rate of utilization"
is a kind of state

   The act of utilizing, or the state of being utilized. [1913 Webster]

N  utility, usefulness, efficacy, efficiency, adequacy, service, use, stead, avail, help, applicability, subservience, function, value, worth, money's worth, productiveness, cui bono, utilization, step in the right direction, common weal, commonwealth public good, public interest, utilitarianism, useful, of use, serviceable, proficuous, good for, subservient, conducive, subsidiary, advantageous, profitable, gainful, remunerative, worth one's salt, valuable, prolific, adequate, efficient, efficacious, effective, effectual, expedient, applicable, available, ready, handy, at hand, tangible, commodious, adaptable, of all work, usefully, pro bono publico.

N  use, employ, employment, exercise, exercitation, application, appliance, adhibition, disposal, consumption, agency, usufruct, usefulness, benefit, recourse, resort, avail, utilization, service, wear, usage, in use, used, well-worn, well-trodden, useful, subservient.