stand by
Intransitive
Meaning: to wait
Example: Please stand by for a few minutes. I’ll be back as quickly as possible!

My father works for an airline, so when I fly I have a discounted fee.  However, I must fly standby which means that I must go to the airport and stand by to see if there is extra space on the flights before I can get on.  It’s often stressful, but saves me a lot of money!  This week I will be flying standby to Ecuador.  Wish me luck!