─ If you take something in, you pay attention to it and understand it when you hear it or read it.
─ to understand or absorb something that you hear or read; to accept something as true.
- Lesley explains possible treatments but you can tell she's not taking it in.
- Gazing up into his eyes, she seemed to take in all he said.
- I read the whole page without taking anything in.
- He just couldn't take in what had happened.
─ If you take something in, you see all of it at the same time or with just one look.
─ to notice something with your eyes.
- The eyes behind the lenses were dark and quick-moving, taking in everything at a glance.
- He took in every detail of her appearance.
- She started to relax and take in her surroundings.
... COBUILD, Oxford Phrasal Verbs Dictionary for Learners of English