Here are some other ways to say it, depending on the context:
* Kaibigan (pronounced kay-bee-gahn) - This literally means "friend" but can be used to refer to friendship in some contexts.
* Pagsasamahan (pronounced pahg-sah-sah-mah-hahn) - This means "companionship" and can be used to describe a close bond between people.
* Pakikipagkaibigan (pronounced pah-kee-kee-pah-gah-kay-bee-gahn) - This literally means "friendship" but is more formal than pagkakaibigan.
The best way to choose the right word depends on the context of your sentence.