An arch is a curved shape that holds things up. You can see arches in bridges or doorways. They help carry heavy weight safely.
The old bridge has a stone arch.
The door has a nice arch shape.
Arch can mean any curved line or shape. For example, a rainbow looks like an arch in the sky. You can also make an arch with your body or hand.
The rainbow forms a bright arch in the sky.
She made an arch with her hand.
To arch means to bend something in a curved way, often up or back. People and animals do this with their bodies to stretch or react to something.
She arched her back to stretch.
The cat arched its back at the dog.
An arch can be a curved part of the body, like the arch of the foot or eyebrow. It is a natural curve that helps the body work well.
He has a strong arch in his foot.
Her eyebrow arch is very clear.
Arch is used to describe a main person, often a bad or tricky one. Like the main villain in a story or the leader of bad actions.
He is the arch of the school pranksters.
The arch villain plans the next move.
Arch can describe a voice or smile that is playful, teasing, or slightly mocking. It is often used to show clever or fun behavior.
She spoke with an arch smile.
His arch tone made her laugh.
To arch means to bend over in a curved shape. You can say paths or bridges arch over things, or a facial part may arch to show feeling.
The path arches over the river.
She arched her eyebrow in surprise.
In biology, an arch is a curved structure in embryos. These arches help form parts of the face, neck, and other organs.
The pharyngeal arch forms the face.
Each arch develops into different organs.
