The meaning of SOON is without undue time lapse : before long. How to use soon in a sentence. Definition Soon (adverb): In or within a short period of time; before long. Expanded Definitions In a brief period from now: “I will finish the project soon .” Early in a period of time: “She arrived soon after me.” Without significant delay: “The guests will be arriving soon .” Etymology Origin: The word “ soon ” originates from the Old English word “sōna,” which means “immediately” or “at once.” It is related to the Dutch “zoo” and the German “so.” Usage ... Find 222 different ways to say SOON , along with antonyms, related words, and example sentences at Thesaurus .com. Soon is an adverb that denotes a relatively short time frame in the future. It expresses the idea that something will happen shortly or in the near future, often conveying urgency or anticipation regarding an event or action.