Select the option that can be used as a one-word substitute for the given group of words.

To renovate or improve

Revamp

The one-word substitute for "to renovate or improve" is revamp.

• Relocate means to move to a new place.
• Revamp means to make major changes to something in order to improve it.
• Resume means to start doing something again after a break.
• Revalue means to change the value of something.

Revamp is the most appropriate word for this group of words because it specifically refers to making major changes to something in order to improve it. The other words do not have the same connotation of making something better.