The correct spelling of the word is "satisfy". It is pronounced /ˈsætɪsfaɪ/. The word is commonly misspelled as "staisfise," which is incorrect. The "t" and "s" needs to be swapped in order to spell it correctly. The word is a verb that means to fulfill a desire, need or demand. Using proper spelling not only ensures clarity in communication but also demonstrates attention to detail and professionalism. Therefore, it's essential to double-check spelling before submitting any written material.