to read something from the beginning to the end, especially to find mistakes: I read over my essay to check for errors.

What does in read mean?

transitive verb. : to cause (oneself) to enter formally upon a new benefice in the Church of England after appointment by public reading of a set of accepted doctrinal statements and by assenting to the statements. intransitive verb.

What's the meaning of read up on?

: to read a lot about (something) in order to learn about it I read up on the history of the war.