The phrase "to get up" means to rise from a sitting or lying position, stand up, or come to a vertical orientation. It can also refer to the act of starting or beginning something, such as a project or task.
Usage examples
After a long night of studying, it's often difficult for me to get up and get ready for class in the morning.
My cat loves to get up on the windowsill and watch the birds outside.
I always make sure to get up from my seat and stretch every hour to avoid feeling stiff.
It takes me a while to get up to the top of the hill, but the view is definitely worth it.
During the winter, it's a struggle for me to get up from my warm bed and brave the cold weather.
After a long flight, it can be exhausting to get up from the cramped airplane seat and gather your belongings.
I find it easier to get up and face the day when I have a cup of coffee to wake me up.
The kids love to get up on the jungle gym at the park and climb all the way to the top.