Final answer:
Keywords in programming languages are predefined words with specific functions that cannot be changed by the user.
These, along with variables, operators, and functions, make up the essential vocabulary of a programming language, and understanding them is crucial for writing effective code.
Step-by-step explanation:
In the context of programming languages, words that have special meaning are typically referred to as keywords. These keywords are predefined by the language's syntax and have specific functions that cannot be altered by the user.
Alongside keywords, there are other elements like variables, which are symbols that can represent different values; operators, which are symbols that tell the compiler or interpreter to perform specific mathematical, relational, or logical operations; and functions, which are a set of instructions bundled together to perform a specific task.
It is imperative to know the vocabulary of a programming language as it encompasses all these elements, including keywords, allowing for effective communication of your thoughts through code.
The tone of a language isn't typically discussed in programming, as it is more about the structure and logic of the code rather than conveying emotional expressiveness.
Syntax is crucial, as it refers to the order or arrangement of words (or in programming terms, code segments), which must adhere to the rules of the language. The viewpoint can be understood as the style or approach a programmer takes in solving a problem.