dot

a very small, round spot.

downhill

sloping down.

fall

to drop from a higher place to a lower place.

check

a pattern of regular squares in different colors, often on cloth or paper.

horizontal

parallel to the ground.

cliff

the high, steep side of a mountain or rock.

follow

to go behind or after someone or something.

against

next to something, touching it

triangle

a shape with three sides