definition of
invent

[1] #1 invent v. [contrive, devise, excogitate, formulate, forge] come up with (an idea, plan, explanation, theory, or principle) after a mental effort; "excogitate a way to measure the speed of light". wn

[2] #2 invent v. [fabricate, manufacture, cook up, make up] make up something artificial or untrue. wn