switch in WordNet English dictionary

1. reverse (a direction, attitude, or course of action)
   interchange  tack  switch  alternate  flip  flip-flop 
   
2. lay aside, abandon, or leave for another
   "switch to a different brand of beer"; "She switched psychiatrists"; "The car changed lanes"
   switch  shift  change 
   
3. make a shift in or exchange of
   "First Joe led; then we switched"
   switch  change over  shift 
   
4. change over, change around, as to a new order or sequence
   switch over  switch  exchange 
   
5. cause to go on or to be engaged or set in operation
   "switch on the light"; "throw the lever"
   throw  flip  switch 
   
6. exchange or give (something) in exchange for
   trade  swap  swop  switch 
   
7. flog with or as if with a flexible rod
   switch 
   

1. control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit
   switch  electric switch  electrical switch 
   
2. an event in which one thing is substituted for another
   "the replacement of lost blood by a transfusion of donor blood"
   substitution  permutation  transposition  replacement  switch 
   
3. the act of changing one thing or position for another
   "his switch on abortion cost him the election"
   switch  switching  shift 
   
4. a basketball maneuver; two defensive players shift assignments so that each guards the player usually guarded by the other
   switch 
   
5. a flexible implement used as an instrument of punishment
   switch 
   
6. railroad track having two movable rails and necessary connections; used to turn a train from one track to another or to store rolling stock
   switch 
   
7. hairpiece consisting of a tress of false hair; used by women to give shape to a coiffure
   switch