Come back.

Meaning: This is asking someone to return to where you are or to a place they were before. It's like saying, Please return to this place.

Choice of Words: Come is a verb that means to move towards the speaker or to a specific location. Back means to return to a previous place or condition. When you combine them, "Come back" means to ask someone to return to the speaker or to a familiar place.

Alternative Expressions

Return.

Meaning: This also means to ask someone to move or go back to where they were before. It's like saying, Please go back to where you were before.

Choice of Words: Return is a verb that means to go back to a place or person. It's similar to "come back", but it can also be used in more formal situations.

Come over here.

Meaning: This is similar to "come back", but it's used when the speaker wants someone to move to their current location. It's like saying, Please move towards me to the place where I am.

Choice of Words: Come is a verb that means to move towards a place or person. Over means to move to the other side of something. Here means the place where the speaker is located. When you put them together, "Come over here" is a request asking someone to move towards the speaker's location.

Related Expressions