1. Set aside for the use of a particular person or party
   "The concert tickets were put on hold for VIP members";
   - reserved
    
2. Delayed; postponed
   "The construction project was put on hold due to budget constraints";
   - on ice
    
3. Waiting on a telephone call
   "I was on hold for 30 minutes before speaking to a representative"

See also: bookable, booked, engaged, set-aside

Encyclopedia: On hold