The abbreviations “m” and “f” typically stand for “male” and “female,” respectively. These designations are often used in various contexts, such as demographics, surveys, and data collection, to specify gender.
In some contexts, “m” and “f” can also refer to other concepts, such as “meter” and “foot” in measurements, but when discussing gender, they are most commonly understood as male and female.
If you have a specific context in mind where you encountered these abbreviations, please provide more details for a more tailored explanation!