General:
* Elephant
* Trunk
* Tusks
* Ears
* Feet
* Skin
* Body
* Head
Group:
* Herd
* Pack
* Troop
Sounds:
* Trumpeting
* Rumbling
* Bellowing
Actions:
* Walk
* Charge
* Graze
* Play
* Bath
Other:
* Habitat
* Sanctuary
* Conservation
* Poaching
* Ivory
Descriptive:
* Giant
* Gentle
* Wise
* Powerful
* Majestic
You can also use adjectives to describe an elephant, such as:
* African
* Asian
* Bush
* Forest
* Male
* Female
* Baby
* Old
* Large
* Small
* Grey
The best noun or adjective to use will depend on the specific context of your writing or conversation.