Ink is a colored liquid that people use to write or print words on paper. It comes in many colors like black or blue.
I write with blue ink every day.
The printer needs new ink now.
Pen ink is the special liquid used inside fountain pens to write. It helps the pen make lines on paper.
The pen ran out of ink fast.
She bought new ink for her fountain pen.
Printing ink is a special kind of ink used in large machines to put words and pictures on paper, like in newspapers.
The printer uses black ink for pages.
Printing ink is on the paper now.
Conductive ink is a special ink that can carry electricity. It is used in electronics to make flexible circuits or printed electronics.
Scientists created a new conductive ink.
Conductive ink helps make flexible circuits.
Ink can refer to the writing or printed words on paper, especially when talking about legal papers or contracts. It shows something is official.
Once the ink dries, the deal is done.
The ink on the contract is still wet.