Which concept encourages using the same grammatical form to express equal ideas?

• A. Antithesis
• B. Parallelism
• C. Alliteration
• D. Chiasmus

Answer: (B)

Parallelism is the technique of using the same grammatical form to express ideas that have equal importance. When the elements in a sentence share the same structure—such as all items in a list using the same part of speech or verb tense—the sentence reads smoothly and signals that each part matters equally. For example, “She likes hiking, biking, and swimming” keeps all items in the -ing form, creating a balanced rhythm. Another clear instance is “To understand is to act,” which mirrors the infinitive form on both sides to show equal weight of the ideas. Other devices work differently: antithesis pairs contrasting ideas, alliteration focuses on repeating initial sounds, and chiasmus reverses the order of parallel elements for emphasis. So using the same grammatical form to express equal ideas is what parallelism is all about.