As a noun:
* After a long day, my thoughts were a rambling mess.
* The professor's lecture devolved into a rambling discussion about the history of philosophy.
* The detective listened patiently to the witness's rambling story.
As an adjective:
* The speaker's rambling speech lost the attention of the audience.
* The old man's rambling letter contained stories of his youth and memories of his family.
* We wandered through the forest on a rambling walk.
As a verb:
* The children rambled through the fields, chasing butterflies.
* She rambled on about her trip to the Bahamas, ignoring our questions.
* The river rambled through the valley, creating a picturesque scene.
As part of a phrase:
* The speaker's rambling monologue went on for hours.
* I tried to follow the rambling plot of the movie, but I couldn't keep up.
* The rambling garden was filled with colorful flowers and unexpected paths.
Remember, the context of the sentence will determine the meaning of "rambling."