Back Up
Use this phrasal verb in a sentence as it applies to technology...
I am so happy I backed up my computer before it was stolen.
Use this phrasal verb in a sentence as it applies to understanding...
After two weeks in Albania, I started to catch on to how things worked here.
Use this phrasal verb in a sentence as it applies to movement...
Please back up your shopping cart, you are in my way.
Use this phrasal verb in a sentence as it applies to trends or phenomena...
TickTic started to catch on in local middle schools.
Use this phrasal verb in a sentence as it applies figuratively...
I always have my brother as back up.
Use this phrasal verb in a sentence as it applies to a blockage...
There was a 30 minute back up on the freeway.