My English blog

The phrasal verb can have different meanings in differenet contexes

learn
Children pick up languages more easily than adults.

...
catch an illness
I picked up the flu from somewhere.

lift something
Pick up the phone.

charged, arrested or taken in for questioning by the police
If you're not careful, you'll be picked up for drink driving.

persuade someone to have sex
He went to the bar hoping to pick up a girl.

noticed
I picked up a lot of mistakes in your essay.

resumed
I picked up writing the letter where I left off.

get better or improve
This medicine will help you to pick up.

gained
The car picked up speed going down the hill.

pay
There was some heated discussion about who should pick up the bill.

collect someone in a car
Remember to pick up the children from school this afternoon.