sub-
An underground passage
What is a subway?
One that often accompanies another
What is companion or comrade?
To push or drive usually forward or onward
What is propel?
To bring about by force
What is enforce?
A naval vessel designed to operate underwater
What is a submarine?
To bring into close relationship
What is combine?
To make a suggestion to be thought over and talked about
What is propose?
To cause to feel courage, spirit, or hope
What is encourage?
A secondary or explanatory title
What is a subtitle?
To put together or be joined to form a whole
What is compound?
To cover or shield from something that would destroy or injure
What is protect?
To give into the care of another
Entrust
What is submerge?
Association with another
Company
The person who supplies what is needed for support
What is provider?
To bring into peril
What is subtotal?
To reduce the size, amount, or volume of by or as if by pressure
What is compress?
To move up in position or rank
What is promote?
To make possible, practical, or easy
What is enable?