0 Hi and welcome to the forums!02br 02br 00Both are correct. 01i00Endeavour 02i00is BrE, and 01i00endeavor 02i00is AmE.02br 00See, for instance,05000.0240hrefhttp://dictionary.cambridge.org/define.asp?key=25592&dict=CALDc this entry from Cambridge Advanced Learner's Dictionary