(ō′vər) prep.
1. In or to a place or position above; higher than: the sky over our heads.
2. So as to pass or extend across; from one end or side of to the other: the plane flying over the lake; walking over the bridge.
3. On the other side of: lying over the ocean.
4. Upon the surface or exterior of: Oil was smeared over the axle.
5. Here and there upon or within; throughout all parts of: traveling over land and sea.
6. So as to rise above, cover, or submerge: The mud is now over my boots.
7. So as to close or cover: a cloth tied over the mouth of the jar.
8. During the continuance of; through: a diary kept over the years.
9. Up to the end of and beyond: Stay with us over Christmas.
10. More than; in excess of, as in amount, degree, number, extent, etc.: over a million dollars in assets.
11. In preference to: chosen over all other contenders.
12. In higher rank, authority, power, etc., than: They want a strong man over them.
13. Upon, as an effect: His influence over her is profound.
14. Concerning; with regard to: time wasted over trifles.
15. While engaged in or partaking of: falling asleep over Shakespeare; a bargain made over a bottle of wine.
—over all From one end or aspect to the other.
—over and above In addition to; besides.
—adverb
1. Above; on high.
2. So as to close, cover, or be covered: The pond froze over.
3. To pass above from one of two sides or places to the other; across an intervening space, brim, or edge.
4. At or on the other side; at a distance in a specified direction or place: over in Europe; They're playing music over there.
5. From one side, opinion, or purpose to another: to be won over to a point of view.
6. From one person, condition, or custody to another: to make property over to someone.
7. From beginning to end; all through; completely: I′ll think the matter over.
8. With the upper surface downwards; from an upright position, especially so as to invert, reverse, or transpose: to turn one's hand over, to topple over.
9. With repetition; again: He added his figures over.
10. So as to overflow: The cup ran over.
11. So as to constitute a surplus; in excess; beyond: enough to have some left over.
12. Beyond a stated time; until later: Plan to stay over.
—all over with Finished.
—over again Once more; afresh.
—over against Opposite to; as contrasted with; in front of.
—over and over Repeatedly.
—over there Colloq. In Europe: a phrase popularized in the United States during World War I.
—adjective
1. Finished; complete.
2. On the other side; having got across.
3. Outer; superior; upper.
4. In excess or addition; extra.
—noun
1. Something remaining or in addition.
2. In cricket: a The succession of four to six balls bowled during a turn at one end of the wicket, b The part of the game in which this occurs.
3. Mil. A shot hitting or exploding beyond the target.
—v.t. & v.i. To go or pass over. [OE ofer]

1. Above; on top of; superior: overlord.
2. Passing above; going beyond the top or limit of: overarch, overflow.
3. Moving or causing to move downward, as from above: overthrow, overturn.
4. Excessively; excessive; too much. Over– is widely used in def. 4 to form compounds, as in the list beginning at the foot of the page.