The process of making something clean.
"After weeks of neglect, she spent the entire weekend on cleaning to restore her kitchen's shine."
In plain English: Cleaning is the act of making something tidy and free from dirt.
"The cleaning took all afternoon because so many people left their dishes in the sink."
Usage: Use "cleaning" as a noun to refer to the general activity or process of removing dirt and mess from a surface or space. It typically functions as an uncountable mass noun, such as in the phrase "start cleaning," rather than referring to a single specific item that has been cleaned.
present participle of clean
"The cleaning crew arrived just as we were finishing up dinner to handle the heavy spills in the kitchen."
In plain English: Cleaning is the act of removing dirt, messes, and unwanted things from a surface to make it neat and tidy.
"She is cleaning the kitchen after dinner."
Usage: Use "cleaning" to describe the ongoing action of removing dirt or messes from a surface or object. It functions as the present participle of the verb "clean" when indicating that the activity is currently happening or used in continuous tenses.
Derived from Old English clǣnan, meaning to make clear or free from dirt, the term entered Middle English with the sense of removing impurities. It evolved into the modern gerund form denoting the act or process of making something clean.