What is an homophone for stick in ground?

There isn't a perfect homophone for "stick in the ground" as a whole phrase. However, depending on the context, you might be able to use one of these:

* "Stuck" is a homophone for "stick" when referring to being stuck in a place. For example: "The car got stuck in the mud."

* "Stake" is a homophone for "steak" and can refer to a stick driven into the ground for support. For example: "They hammered a stake into the ground to secure the tent."

Ultimately, the best word to use will depend on the specific meaning you are trying to convey.