'Liàn kǒuyǔ' literally means 'to practice spoken language' — combining 练 (liàn, 'to practice'), 口 (kǒu, 'mouth' or 'oral'), and 语 (yǔ, 'language' or 'speech'). It specifically refers to the active, deliberate effort to improve one’s ability to speak a language fluently and accurately, rather than just studying grammar or vocabulary. This term is commonly used in language learning contexts, especially when describing regular, intentional speaking activities like conversation exchanges, shadowing, or speaking drills.

The phrase functions as a verb and typically appears after subjects and before objects or complements (e.g., '每天练口语', '跟老师练口语'). It implies effort, repetition, and focus on pronunciation, intonation, fluency, and real-time communication. Unlike passive listening or reading, 练口语 emphasizes output — producing speech oneself. It's often contrasted with 练听力 (practice listening) or 练写作 (practice writing), highlighting its role in balanced language development.