By surface analysis, indicate +‎ -ion. indication (countable and uncountable, plural indications) An act of pointing out or indicating. There's no indication that the fire was caused by criminals. All the indications point to drink-driving as the cause of the accident. 1. something that serves to indicate or suggest; sign: an indication of foul play. The meaning of INDICATION is something that serves to indicate. How to use indication in a sentence. Indication (medicine) In medicine, an indication is a valid reason to use a certain test, medication, procedure, or surgery. [1] There can be multiple indications to use a procedure or medication. [2] An indication can commonly be confused with the term diagnosis. An indication is a sign, signal, or piece of information that suggests or points to something. It can refer to a mark or feature that helps to identify or explain. There is some indication [= suggestion] that the economy is recovering. Her evaluation will give me a good indication of where I stand in the class. There were indications that he was thinking of changing jobs. Definition of indication noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Learn what indication means with clear definitions, pronunciation, synonyms, and real-world examples. Simple explanations to help you use indication correctly. INDICATION definition: 1. a sign that something exists, is true, or is likely to happen: 2. a suitable action that is…. Learn more. An indication is a sign which suggests, for example, what people are thinking or feeling. All the indications are that we are going to receive reasonable support from abroad. He gave no indication that he was ready to compromise.