to become or to make sth become more definite and less likely to change （使）变得坚定，变得稳固，巩固
~ (into sth)
Vague objections to the system solidified into firm opposition.
先前对这一制度不大明朗的反对演变成了坚决的抵制。
🔊🔊
~ sth
They solidified their position as Britain’s top band.
他们巩固了自己作为英国顶尖乐队的地位。