TO TAKE UP - [verb] to start doing some activity, especially for pleasure

Examples of use

She was getting bored with her life, so she took up parachuting.

I took up piano lessons last month, because I'm really keen on music.

 

CHECKOUT - [noun] a place in a self-service shop where you pay for goods

Examples of use

People get furious with the long queues at the checkout.

Every time I pay at the checkout I realize how expensive life is.