A number of words begin using the letters EX, such as these:

Exact, Exaggerate, Exalt, Exam, Example, Exasperated, Excavate, Exceed, Excel, Excellent, Exception, Excerpt, Excess, Excursion, Exclaim, Exclude, Excite, Excitement, Execute, Executable, Exemplify, Exempt, Exert, Exhaust, Exhibit, Exhume, Exhilarate, Exile, Exist, Exit, Explain, Expose, Exterminate, Extraordinary, Extraterrestrial, Extravagant, Extreme, Extricate, Exuberant

Often these letters will precede a variety of words, separated by a hyphen; such as in "ex-wife" or "ex-chairman". This usually means the same thing as "former". However, this meaning seldom relates to words that include or start with EX, such as those listed above.