"이런" (pronounced "ireon") is a Korean word that translates to "such" in English. It is used to describe something that is similar to or exemplifies a particular quality or characteristic. For example, if someone says "이런 사람" (such a person), they are referring to a person with specific traits or behaviors that have been previously mentioned or are understood in context. In conversation, "이런" can also express surprise or emphasis. For instance, if someone encounters an unexpected situation, they might say "이런!" to convey their astonishment. This usage highlights the emotional response to a situation, making "이런" a versatile word in everyday Korean language.