The Correct spelling is: burglar
Common misspellings of the word burglar are:
How do you spell burglar?. It is not burgular or even burgulare for that matter!
One who commits burglary.
[Anglo-Norman burgler (alteration of burgesur, probably from Old French burg, borough) and Medieval Latin burgulÄtor (alteration of burgÄtor, from burgÄre, to commit burglary in, from Late Latin burgus, fortified town), both of Germanic origin.]