Correct spelling for the English word "thibeault" is [θˈa͡ɪbɒlt], [θˈaɪbɒlt], [θ_ˈaɪ_b_ɒ_l_t] (IPA phonetic alphabet).
The word "Thibeault" is derived from the French given name Thibault. The name Thibault originated from the Old German name Theobald, which is composed of the elements "theud" meaning "people" and "bald" meaning "bold" or "brave". Over time, the name Thibault has evolved into various spellings and pronunciations, including Thibeault. It is primarily a surname of French origin.