1. As a noun phrase: It's spelled as two separate words: home ground. This refers to the place where someone feels most comfortable and at ease.
2. As a noun referring to a sports team's stadium: It can be spelled as one word: homeground. This is a less common spelling, but it's still used.
3. As an adjective: It's spelled as one word: homeground. This describes something related to a person's home or a sports team's stadium.
Example Sentences:
* Noun phrase: "I felt a sense of comfort and security on my home ground."
* Noun: "The team played their best at their homeground."
* Adjective: "The stadium was a homeground advantage for the team."
Ultimately, the best way to choose the correct spelling is to consider the context of the sentence and the intended meaning.