Annatatsiya Mazkur tezisda o‘zbek va ingliz tillarida replikaning dialogik butunlikni shakllantirishdagi o‘rni qiyosiy jihatdan tahlil qilinadi. Replikaning struktur-semantik va pragmatik xususiyatlari, uning dialog tarkibidagi boshlovchi, javob beruvchi, baholovchi va yakunlovchi funksiyalari yoritiladi. Tadqiqot natijasida replika dialogning mazmuniy izchilligi va kommunikativ yaxlitligini ta’minlovchi asosiy birlik ekanligi asoslanadi. Summary This thesis comparatively analyzes the role of the replica in forming dialogic unity in Uzbek and English. It examines the structural-semantic and pragmatic features of replicas, as well as their initiating, responsive, evaluative, and concluding functions in dialogue. The study proves that the replica is a key unit ensuring the semantic coherence and communicative integrity of dialogic speech.