Verb
invent -
come up with (an idea, plan, explanation, theory, or principle) after a mental effort; "excogitate a way to measure the speed of light"
contrive ,
devise ,
excogitate ,
formulate ,
forge
create by mental act ,
create mentally create mentally and abstractly rather than with one's hands
invent -
make up something artificial or untrue
fabricate ,
manufacture ,
cook up ,
make up
dream up ,
think up ,
concoct ,
hatch ,
think of devise or invent; "He thought up a plan to get rich quickly" ; "no-one had ever thought of such a clever piece of software"
mythologise ,
mythologize make into a myth; "The Europeans have mythicized Rte. 66"
confabulate unconsciously replace fact with fantasy in one's memory
trump up ,
concoct invent; "trump up charges"
spin prolong or extend; "spin out a visit"
vamp up ,
vamp provide (a shoe) with a new vamp; "revamp my old boots"