CQ is a term used in radio communication to request a response from another station. Although commonly used in radio communication, it can also refer to other things, like a call to action or appeal for attention. Synonyms for CQ include "attention," "alert," "announcement," "notice," "solicitation," and "signal." These words represent the essence of CQ by conveying messages that seek to attract or elicit a particular response. Using synonyms for CQ can make messages more engaging and increase the likelihood of a desired response. In summary, CQ and its synonyms are essential components of communication that seek to initiate a response from the receiving end.