Penpoint refers to the tip of a pen or a pencil which is typically used for writing or drawing. Synonyms for penpoint include nib, point, tip, apex, and end. Nib specifically refers to the writing tip of a fountain pen, whereas point can be used more generally for any writing tool. Apex is often used to describe the narrowest and sharpest point of a pen, while tip can also be used to refer to the end point of a pencil. End can also be used more broadly to refer to the tip or point of any object. Overall, each of these synonyms can be used in place of penpoint in different contexts for varying effects or emphasis.