The term "suiting" generally refers to fabric that is used to make suits, typically for formal or professional occasions. "Suiting" can also refer to the process of tailoring or making a suit, or to the overall style of dress associated with wearing a suit.
In a broader sense, "suiting" can refer to any type of clothing or outfit that is designed to be worn in a formal or professional setting, regardless of whether it includes a suit or not. This might include dress pants and blouses, skirts, jackets, or other items that are typically associated with more formal or business-oriented attire.