* Writing ink: This is a common way to describe ink used for writing.
* Printing ink: This refers to ink used for printing purposes.
* Drawing ink: This type of ink is specifically designed for drawing.
* India ink: This is a black ink traditionally made from lampblack and gum arabic.
We can also create compound words based on the color of the ink, like:
* Black ink: A common color of ink.
* Red ink: Used for correcting mistakes or marking important items.
* Blue ink: Another popular color of ink.
Ultimately, the best compound word for "ink" depends on the specific context and what you want to emphasize.