Ripple
earthquake wave or shock wave
Another name for it is wave interference.
Another word for a small valley is a dell.
Japanese word for tsunami-harbour wave. spanish word-maremoto.
Another word for wave could be surge. You could also say tide or steam.
A Gherkin is another name for a small pickled cucumber.
small
Coronet is another name for a small crown.Tiara is also another word for a small crown.
A medium.
another word is plantation(depends on what you are looking for)
small copy = miniature
Small world/country. :P