Which guide words would be found on the same page as hydrophone?

It's impossible to give you exact guide words without knowing which dictionary you're using.

However, I can give you some possible guide words based on how "hydrophone" is alphabetized:

* Possible guide words BEFORE "hydrophone":

* hydrant

* hydrogen

* hydraulic

* hydrolysis

* Possible guide words AFTER "hydrophone":

* hydroponics

* hydroscope

* hyena

* hygiene

To find the exact guide words:

1. Look up "hydrophone" in the dictionary.

2. The guide words will be at the top of the page, usually in bold.

Let me know if you have the dictionary name, and I can try to be more specific!