Comparative conjunctions are words that connect clauses or phrases to show a comparison between two ideas. Common examples include "than," "as," and "like." These conjunctions help clarify relationships, such as when one thing is greater, lesser, or similar to another, making it easier for readers to understand the comparison being made. In sentences, comparative conjunctions often appear in structures that highlight differences or similarities. For instance, in the phrase "She runs faster than her brother," the word "than" establishes a comparison between the running speeds of her and her brother. This enhances clarity and provides context for the reader.