Open out Definition 1 of 3Pro Tip 1/3Physical Change Used when describing a change in physical spaces or objects becoming larger. As we moved forward, the tunnel started to open out. Pro Tip 2/3Visual Impact Gives a sense of a visual transformation, highlighting the expansion in view. The field opens out beyond the gate, offering a breathtaking view. Pro Tip 3/3Metaphorical Use Can describe abstract concepts, like opportunities widening. Career options open out after graduation.