Anti-

"Anti-" is a prefix used in English to mean "against" or "opposite." It is added to words to indicate resistance, opposition, or the reversal of a particular idea or object. For example, "antibiotic" refers to substances that kill or inhibit bacteria, fighting against infection. Similarly, "antivirus" denotes software designed to detect and eliminate computer viruses, counteracting them. In general, "anti-" helps form words that describe opposition or counteraction toward a specific thing, concept, or condition.