Noun the testing of an idea, the act of conducting a controlled test or investigation, A becoming practically acquainted with something; an experience, intransitive verb_ To conduct an experiment, To try something new, especially in order to gain experience, transitive verb_ obsolete To test or ascertain by experiment; to try out; to make an experiment on, obsolete To try; to know, perceive, or prove, by trial or experience, verb_ to conduct a test or investigation, try something new, as in order to gain experience