Here are some of the meanings associated with "frat":
* The organization itself: When people say "frat," they might be referring to a specific fraternity, like "I joined a frat my freshman year."
* The members of the fraternity: You might hear someone say, "Those frats are always partying." This refers to the members of the fraternity.
* The culture and activities associated with fraternities: "The frat scene is really competitive," might be a comment about the overall social environment and activities related to fraternities.
It's important to note that the word "frat" can sometimes carry negative connotations, as fraternities have been criticized for hazing, excessive drinking, and other issues.
There are also sororities, which are similar organizations for female students. The abbreviation "sorority" isn't used as commonly as "frat," though.