The phrase "refer to" is often used to indicate directing someone's attention to a certain thing or topic. However, there are plenty of alternatives that can effectively convey the same meaning. For example, one can mention, indicate, point out, allude to, or speak about something. Additionally, phrases such as "make reference to," "touch on," "cite," and "mention in passing" can also be used to replace "refer to." It is important to use a variety of phrases to prevent repetitive language and maintain the flow of writing or speech. Synonyms provide options and variety to language, which allows for greater clarity in communication.