cross

A mark, object, or structure formed by two lines, bars, or pieces intersecting or lying across one another. It can refer to a road junction or intersection where two or more roads meet, or specifically a religious symbol of Christianity consisting of an upright post with a transverse bar.

• We had to wait at the cross for the traffic light to change. — This refers to a road junction where paths intersect.
• She wore a small silver cross as a symbol of her faith. — This refers to the religious symbol.

To go from one side of something to the other, or to intersect or meet at a point.

• Please be careful when you cross the street. — This means to walk from one side of the street to the other.
• Their paths crossed many times throughout their lives. — This means they met each other repeatedly.

Feeling annoyed, angry, or in a bad temper. This usage is somewhat informal or old-fashioned, often used to describe children or a temporary state of irritation.

• Don't be cross with me, I didn't mean to break your toy. — This means 'Don't be angry or annoyed with me'.
• The baby gets very cross when she is tired. — This means the baby becomes irritable or ill-tempered when tired.