Hello, I am using Wordnet::QueryData which allow access to a very huge dictionary data. The initialization of object my $wn = WordNet::QueryData->new; took 2 wallclock secs ( 2.36 usr + 0.07 sys = 2.43 CPU) Then the subsequent request for the data is exetremely fast For the lines below took 0 wallclock secs ( 0.00 usr + 0.00 sys = 0.00 CPU)