1. (

• alternate ,
• jump ,

) go back and forth; swing back and forth between two states or conditions ;

2. (

• alternate

) exchange people temporarily to fulfill certain jobs and functions ;

3. (

• understudy ,
• alternate

) be an understudy or alternate for a role ;

4. (

• interchange ,
• tack ,
• switch ,
• alternate ,
• flip ,
• flip-flop

) reverse (a direction, attitude, or course of action) ;

5. (

• alternate ,
• take_turns

) do something in turns; "We take turns on the night shift" ;

1. (

• alternating

) (of a current) reversing direction; "alternating current" ;

2. (

• alternate ,
• alternating ,

) occurring by turns; first one and then the other; "alternating feelings of love and hate" ;