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

What's the highest possible score you can get in Scrabble from this list of words that start with 'ga' and include 'h'?
Given there are heaps of words to select from, your best choice is 'gazpacho' which scores 25 points.

Which word from this page is the most interesting?
Ranking as our favorite unusual word on this list is 'galvanography'. According to the Oxford dictionary, 'galvanography' is defined as "1. The art or process of depositing metals by electricity; electrotypy. 2. A method of producing by means of electrotyping process (without etching) copperplates which can be printed from in the same manner as engraved plates.".

Which word on this page has the highest letter count?
The largest word is 20 characters, which is 'gastrohysterorrhaphy'.

What's the most common word for this page?
When it comes to well-known words, there's 'gathered', which ranks as the 1676^th most common word.

How many words are there using these particular combinations of letters?
On this page of words that start with 'ga' and include 'h', Dictionarypedia has found 278 entries which are possible altogether.