B1
a colored liquid that you use for writing, printing, or drawing
Dictionary examples:
The printer ran out of ink mid-exam. Even the paper looked stressed! (0.0)
I used glow-in-the-dark ink for my homework. My teacher was shocked at night! (0.0)
I accidentally drank my ink instead of coffee. Now my tongue's blue! (0.0)
a bottle of ink (17.0)
blue/black/red ink (28.6)
Please write in ink, not in pencil. (34.8)
The book is printed in three different colored inks. (36.2)