The meaning of OVER is across a barrier or intervening space; specifically : across the goal line in football. How to use over in a sentence.

We use over as a preposition and an adverb to refer to something at a higher position than something else, sometimes involving movement from one side to another: …

In a position to rule or control: The director presides over the meeting.

If someone or something goes over a barrier, obstacle, or boundary, they get to the other side of it by going across it, or across the top of it. I stepped over a broken piece of wood. Nearly one million …

If something is over it is finished, across, or above. When a movie is over, you get up and leave. A blanket that's over your feet covers your toes. A painting over a fireplace hangs above it.

above and to the other side of: to leap over a wall. above in authority, rank, power, etc., so as to govern, control, or have jurisdiction regarding: There is no one over her in the department now.

There are 42 meanings listed in OED's entry for the word over, five of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.