The Chinese word **钢笔 (gāngbǐ)**, meaning "fountain pen" or literally "steel pen," is a compound word formed through a straightforward modifier-noun structure. The first character, **钢 (gāng)**, means "steel," and the second character, **笔 (bǐ)**, means "pen" or "writing brush." The term is descriptive, where "steel" modifies the kind of pen, specifically referring to the hard, metallic nib that distinguishes it from traditional brushes (毛笔) or pens with other materials. This logical combination creates a new, specific meaning from two existing morphemes, which is a common method of word formation in Chinese.