Final answer:
Language conveys thoughts and feelings through a system of arbitrary symbols, largely consisting of letters, to communicate effectively. These symbols take the form of characters in writing or gestures in sign language.
Step-by-step explanation:
Language uses a system of arbitrary symbols, primarily in the form of letters, to efficiently and effectively communicate thoughts and feelings. These letters, often combined into words, convey specific meanings. For example, the English language comprises twenty-six letters that together create over 600,000 recognized words. Similarly, sign language utilizes a combination of hand gestures, facial expressions, and postures with an intimate knowledge of signing grammar to convey messages without vocal sounds. In addition, even in mathematical language, symbols such as 'x' or 'n' are used as labels to convey ideas within the structure of equations. Each language system, with its linguistic rules and symbols, acts as a vehicle for conveying cultural norms, social interactions, and complex ideas.