English thread. Why not?

Well, despite this being an English forum, there are many members that are not native English speakers. And it is a common thing to see English mistakes in mods and posts (mines...), or even seem phrases in mods that are ok grammatically but was construct in a very unusual/unnatural/unrealistic manner. So, why not a thread about expressions, slangs, syntax, common/colloquial ways of saying something in English?
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Well, for a start, I'm having problems in naming a kind of 'floor door' for a map I'm working on. It is a ship, that is suposed to look 'more or less' just like a La Fayette frigate:
As in the image, it has some kind of cannon in the front deck. But, in the map,it is storage at the inner floor of the ship. And, when needed, a big 'door' in the deck's floor should open so it can raise the cannon outside the ship. Well, how would it be a good name for this 'door' at the door? Hatch? Hatchway? Trap Door? Scuttle? Bibb? I rly don't know the right word for this. o.õ
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Well, for a start, I'm having problems in naming a kind of 'floor door' for a map I'm working on. It is a ship, that is suposed to look 'more or less' just like a La Fayette frigate:
Spoiler:
As in the image, it has some kind of cannon in the front deck. But, in the map,it is storage at the inner floor of the ship. And, when needed, a big 'door' in the deck's floor should open so it can raise the cannon outside the ship. Well, how would it be a good name for this 'door' at the door? Hatch? Hatchway? Trap Door? Scuttle? Bibb? I rly don't know the right word for this. o.õ