to think carefully and deeply about something; to bring up and chew again what has already been chewed and swallowed
- The question got us ruminating on the real value of wealth.
- He ruminated over/about the implications of their decision.
- a ruminating cow
- ruminations on the meaning of life
- Cows break down their food by rumination.
- размышлять, жевать жвачку, раздумывать