As you may have noticed, above you will find words for "The proposed situation in which a ghost (an excitation of a field with a wrong sign of the kinetic term) acquires a vacuum expectation value, spontaneously breaking Lorentz invariance.". Hover the mouse over the word you'd like to know more about to view its definition. Click to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.