An experiment with something is when a person tests or tries it out to see what the results will be. Testing and trying are two common methods used to gain knowledge and understanding of a particular subject. The term 'experiment with' can be broken down into two words: TEST (4 letters) and TRY (3 letters). Testing involves conducting a series of trials to determine the outcome of a certain situation, while trying involves attempting something in order to gain a better understanding of it.