Definition: A paintbrush.

Alright class, settle down and let’s take a peek, At this little puzzle, quite unique! The dictionary’s tripped us with a curious plea, Saying “a paintbrush,” but what does that really mean to me? Now, think about pencils, smooth and bright, Used for writing, day and night. We draw our pictures, neat and true, With lines of graphite, shiny and new! A paintbrush holds a vibrant hue, Mixing colors, fresh and new. But a pencil’s purpose, clear and bold, Is to mark with darkness, stories told. The dictionary’s playful, it seems to play, Using “paintbrush” in a different way. It's a little trick, a clever tease, Let's focus on the work that pencils appease! So, what does ‘pencil’ mean? It means to write , you see, A tool for drawing, wonderfully free! Do you have any questions about this rhyme and clue?