call

If you call someone, you contact them using a telephone.

Example: Can you call me tonight at about 8:00?

If you call to someone, you use your voice to make them notice you.

Example: I can't see you. Call out to me so I can find you.

If you call someone or something x, you say they are x.

Example: If you ever tell anyone that, I'll call you a liar.

If somebody is called something, that is their name.

Example: Their daughter's called Mai.

If you call somebody somewhere, you ask or tell them to come there.

Example: She called me to her office.