Keep meanings : do something without stopping or do it repeatedly: Keep walking until you reach to a supermarket.
remain in a particular condition: I like to keep busy. I walk to work to keep fit.
cause to remain in a particular condition: This overcoat will help keep you warm in cold weather.
have or save something: I always keep extra money for emergencies.
put or store something in a particular place: I keep my teabags on the top shelf.
care for, look after, protect: Lucy will keep the kids while I shop.
breed, raise, take care of: He keep chickens and also goats in his back yard.
do what you said or agreed: Daniel promised to be back soon. I hope he will keep his word.
own, manage, run: My parents keep also a shop in a small village.
cause someone to stay, detain: There was nothing to keep him in this city.