# Title case > Supported in: Batch, Faster, Streaming Converts the first character of each word to be uppercase and the rest lowercase. **Expression categories:** String ## Declared arguments * **Expression:** The string to convert to title case.
*Expression\* **Output type:** *String* ## Examples ### Example 1: Base case **Argument values:** * **Expression:** hello world **Output:** Hello World *** ### Example 2: Null case **Argument values:** * **Expression:** *null* **Output:** *null* *** ### Example 3: Edge case **Argument values:** * **Expression:** hello-world **Output:** Hello-world ***