1. to think deeply and carefully about something
2. to chew cud (of animals like cows and sheep)
Usage: biological

Examples

• She ruminates on her career choices every evening.
• The philosopher ruminates about the meaning of existence.
• He ruminates over past mistakes instead of moving forward.
• The cow ruminates peacefully in the pasture.
• After reading the book, she ruminates on its deeper themes.
• The sheep ruminates while resting under the tree.