How is 'syntax' defined in programming languages?

In programming languages, 'syntax' is defined as the set of rules that governs the structure and combination of symbols used to write code. It dictates how statements and expressions must be formed for the language to interpret them correctly. Just as grammar rules guide the formation of sentences in human languages, syntax provides the structure needed to convey meaning in programming. If the syntax is incorrect, the code will not compile or run, indicating that adhering to the specified rules is crucial for successful programming.

The other definitions relate to different aspects of software development. The overall design of a software program references architecture or high-level structure, while testing and debugging code involve identifying and fixing errors rather than rules of expression. Lastly, structuring a database pertains to how data is organized, which is not directly related to syntax in programming languages.