The act of using:
— Skilled in the utilization of computers.

synonyms: employment, exercise, usage, use, utilisation.

Roget 677: use; employ, employment; exercise, exercitation^†; application, appliance; adhibition^†, disposal; consumption; agency etc. (physical) 170; usufruct; usefulness etc. 644; benefit; recourse, resort, avail.    [Conversion to use] utilization, service, wear.    [Way of using] usage.    ... show more

Roget 644: utility; usefulness etc. adj.; efficacy, efficiency, adequacy; service, use, stead, avail; help etc. (aid) 707; applicability etc. adj.; subservience etc. (instrumentality) 631; function etc. (business) 625; value; worth etc. (goodness) 648; money's worth; productiveness etc. 168; cui bono [Lat.] etc. (intention) 620; utilization etc. (use) 677; step in the right direction.    common weal; commonwealth public good, public interest; utilitarianism etc. (philanthropy) 910.    ... show more

Dutch: benutting, nut, gebruik
Polish: korzystanie, wykorzystywanie, stosowanie, używanie, posługiwanie się

The state of having been made use of.