讲究 (jiǎng jiū) is a verb meaning 'to be particular about' or 'to pay careful attention to' something—especially quality, appearance, etiquette, or procedure. Though the character 讲 means 'to speak' or 'to explain', and 究 means 'to investigate' or 'to pursue thoroughly', together they convey the idea of scrutinizing details with intention and care. It often implies a cultural or personal standard—not mere fussiness, but thoughtful adherence to tradition, aesthetics, or propriety.

This word commonly appears in contexts like food, clothing, home decoration, social rituals, or work habits. For example, someone who chooses only seasonal ingredients or arranges tea ceremony tools precisely may be described as 讲究. It carries a neutral-to-positive connotation: respectful when describing cultural refinement, slightly critical if implying excessive formality. It’s frequently used in both spoken and written Mandarin, especially in descriptive or evaluative statements about lifestyle choices.