Experiment (Noun): Carrying out experiments Thesaurus:  test, investigation, trail, examination, observation, assessment, evaluation, appraisal, analysis, study, 2. These results have been established by experiment: Thesaurus: research, experimentation, observation, analysis, testing, Experiment (Verb): They experimented with new ideas. Thesaurus: conduct experiments, carry out trails/ tests, conduct research, test, trail, do tests on, try out, assess, appraise, evaluate Learn English grammar without any confusion. Learning a global language English gives us confidence and more information from the world.

Meaning of "expiate" Expiate (verb): an attempt to expiate his sins;  Thesaurus: atone for,  make amends for,  make up for,  do penance for,  pay for,  redress,  redeem,  offset,  make good.