Act upon
To take action because of something like information received
Chance upon
Find something by accident
Come upon
Find by chance
Count upon
Expect something to happen and base plans on it
Decide upon
Choose, select
Draw upon
Exploit or use knowledge, skills or information for a specific purpose or aim
Dwell upon
Spend a lot of time on something
Embark upon
Start a project or venture
Grow upon
Like something that you didn't like at first
Hinge upon
Depend very much or completely
Hit upon
Have an idea
Leap upon
Show interest in or try to use something to your advantage
Loose upon
Release or allow something bad to affect someone
Play upon
Exploit a weakness
Press upon
Pressure someone to accept something offered
Prey upon
Catch and kill an animal for food
Set upon
Attack
Strike upon
Have a good idea
Stumble upon
Find something accidentally
Touch upon
Mention
Trade upon
Exploit, use to your advantage
Urge upon
Persuade or pressure to accept something
Wait upon
Provide someone with what they require