To go from one side to another by moving over something.

A shape formed by two lines that intersect at right angles.

Irritable or angry in mood or expression.

Angry or annoyed.

A mark made by drawing two intersecting lines, often used to indicate a mistake.

In a position that is opposite or across from something.

To mark something with a cross.

A situation or problem that causes difficulty or annoyance.

To breed or mix different types of animals or plants.