characteristic; special quality
特 (tè) · 10 strokes
Phonosemantic compound. 牛 represents the meaning and 寺 represents the sound. Based on the original meaning "bull". The meaning later shifted to "prominent" and "special".
质 (zhì) · 8 strokes
Simplified form of 質. Phonosemantic compound. 斦 represents the sound and 贝 represents the meaning.