Words that start with 'ga' and contain 'x'

What is the largest word you can create using the combination specified?
Consider 'gastrohysteropexy', which has 17 characters.

Which word on this page sticks out as the most popular?
Rating as the 56270^th most popular word, you'll want to ensure that you have 'galaxy' written down.

What's a peculiar word on this page?
You'll discover a handful of weird words in this list, with that said our favorite is 'galaxy'. The definition of 'galaxy' is as follows: "1. (Astron.) The Milky Way; that luminous tract, or belt, which is seen at night stretching across the heavens, and which is composed of innumerable stars, so distant and blended as to be distinguishable only with the telescope. The term has recently been used for remote clusters of stars....".

What's the maximum number of words you can assemble using this combination of letters?
On this list of words that start with 'ga' and include 'x', there are 18 brilliant entries which are possible.

What's the highest score you could get in Scrabble using this list of words that start with 'ga' and include 'x'?
One could make 'galaxy' which scores 17 points.