Syntax: Syntax refers to the arrangement of words and phrases in a sentence to create grammatical structure. For example, "The cat chased the mouse" has a different syntax than "Chased the mouse, the cat did."
Conjunction: A conjunction is a word that connects words or groups of words together. Examples include "and", "but", and "or".
Pronoun: A pronoun is a word used in place of a noun to avoid repetition. Examples include "he", "she", and "it".