特徴

1. Origins, structure, and basic meaning

• Structure: The noun 特徴 (とくちょう) is a distinguishing feature or characteristic.
• Basic usage: The feature itself can be the subject in 長い尾が特徴だ, or several products' 特徴 can be summarized for comparison.

2. Common pitfalls and similar expressions

• A distinguishing feature
  • It is a salient property that helps distinguish the subject, not merely any attribute in a list.