The term "gripe" has several meanings, depending on its context.
1) In a general sense, to gripe means to complain or express dissatisfaction about something. For example, "I'm tired of hearing you griping all the time."
2) Another meaning refers to an unspecified complaint or grievance. For instance, "There are always people who have a gripe against the government."
3) In medicine, gripe is used as another term for influenza, particularly in cases where symptoms such as coughing and sneezing occur. An example usage would be: “My child has been suffering from gripe for two days now.”