chance+upon
131hit upon — find what you want or think of something by chance We hit upon the idea of going to the lake for our holiday after our airline reservations were cancelled …
132light on/upon — come upon or discover by chance. → light …
131hit upon — find what you want or think of something by chance We hit upon the idea of going to the lake for our holiday after our airline reservations were cancelled …
132light on/upon — come upon or discover by chance. → light …