over

Multiple Entries:
  over    over-  

Concise Oxford English Dictionary © 2008 Oxford University Press:
over/ˈəʊvə/

▶preposition

• 1 extending upwards from or above.

  ■ above so as to cover or protect.

• 2 at a higher level or layer than.

  ■ expressing authority or control.

  ■ expressing preference.

  ■ expressing majority.

• 3 higher or more than (a specified number or quantity).

• 4 expressing passage or trajectory across.

  ■ beyond and falling or hanging from.

  ■ at the other side of; beyond.

• 5 expressing duration.

• 6 by means of.

• 7 on the subject of.

▶adverb

• 1 expressing passage or trajectory across an area.

  ■ beyond and falling or hanging from a point.

• 2 in or to the place indicated.

• 3 expressing action and result.

  ■ finished.

• 4 expressing repetition of a process.

▶noun Cricket a sequence of six balls bowled by a bowler from one end of the pitch.

– phrases
be over be no longer affected by.
over against

• 1 adjacent to.

• 2 in contrast with.

over and above in addition to.
over and out indicating that a message on a two-way radio has finished.

– origin OE ofer, of Gmc origin.

Concise Oxford English Dictionary © 2008 Oxford University Press:
over-/ˈəʊvə(r)/

▶prefix

• 1 excessively: overambitious.

  ■ completely: overjoyed.

• 2 upper; outer; extra: overcoat.

  ■ over; above: overcast.