Focus on the pronunciation of inside
English definition of “inside”
/ɪnˈsɑɪd/, /ˈɪn·sɑɪd/ prep, adj, adv [not gradable] (IN INNER PART)
› in or into a room, building, container, or something similar: What’s inside the big box? I’ll work inside and you work outside. People inside (= working for) the White House get an us versus them mentality. › If you get inside an idea or someone’s mind, you understand the idea or the person: He tried to get inside her mind. inside of › If you do something inside of a particular time, you do it using slightly less than that amout of time: I should be back inside of two hours.