SUB-
underground train or its path or system
What is subway
let or make possible
What is enable?
to drive forward by means of force
What is propel?
a mixture of different ingredients
What is compound?
to put someone or something in harm's way
What is endanger?
a ship that operates underwater
What is submarine?
What is enforce?
to put forward a plan, make an offer
What is propose?
to squeeze or flatten with pressure
What is compress?
to advance, move forward
What is promote?
a secondary name or heading
What is subtitle
to give over something for safe keeping
What is entrust?
improvement toward reaching a goal
What is progress?
a business or enterprise
What is company?
to mix two or more things together
What is combine?
a smaller part of a larger group
What is subset?
to make bigger
What is enlarge?
to guard, keep safe or shelter
What is protect?
one who spends time with another by choice
What is companion?
The beginning of the Constitution
What is the Preamble?
to put completely under water
What is submerge?
to inspire or give support
a person or thing that supplies something
What is a provider?
A friend and companion; associate in a group
What is comrade?
to advance, move forward
What is promote?