1 : to make (something) solid or hard or to become solid or hard [+ obj] ▪ Work is under way to solidify the concrete that supports the building. ▪ solidified lava [no obj] ▪ Hot wax solidifies as it cools. 2 : to make (a plan, project, etc.) stronger and more certain or to become stronger and more certain [+ obj] ▪ Recent findings helped to solidify our position. ▪ The international community is working to solidify its alliances. [no obj] ▪ Their plans have solidified.





