to split
To make progress in science, we need to crack the cosmic code.

to make something pretty or fancy by adding an ornament, color, etc
It was Stella’s job to decorate the room for the surprise birthday party.

a person who is invited to stay in one's home
How many guests were at the party?

to move something to higher position
Please lift the box and place it on the table.

the large bowl in a kitchen or wash room into which one pours water for washing hands, etc.
Please pour the dirty water into the sink.

to fall from a container
Somebody spilled juice all over the bench.

(a room containing) a receptacle for the body's waste matter, usually with a supply of water for washing this away; a lavatory
Nearly every house had both a toilet and a shower.

being difficult to complete or work with
Last night's homework assignment was very tough.