Come up and Come forth

Come up verb - To come near or nearer.

Come forth and come up are semantically related in come topic. In some cases you can use "Come forth" instead a verb "Come up", when it comes to topics like come out.

Come forth verb - Come out of.

Come up and come forth are semantically related in come topic. Sometimes you can use "Come up" instead a verb "Come forth", if it concerns topics such as come out, arise.