To cram means to study intensely at the last minute, usually right before a test. When students cram, they try to squeeze weeks of learning into a single night, hoping their brains will hold onto enough information to pass the exam. You might stay up late cramming vocabulary words or frantically reviewing math formulas the morning before a quiz.

The problem with cramming is that information learned this way usually disappears quickly. Your brain needs time to really absorb and connect ideas. Cramming is like trying to gulp down an entire meal in thirty seconds: you might get it done, but you won't digest it well. Students who cram often discover they've forgotten everything by the following week.

The word can also mean to stuff or pack things tightly into a space. You might cram clothes into an overstuffed suitcase or cram too many books into your backpack until the zipper barely closes. Picture trying to fit one more person into an already crowded car: everyone is squeezed together, uncomfortable, with no room to move.

Both meanings share the same feeling of forcing too much into too little space, whether that's information into your brain or objects into a container.