| English | Abbr. | French | Spanish | Portuguese |
|---|---|---|---|---|
| abyss | abysse | abiso, abismo | abissal | |
| abyssal | abyssal | abisal | abissal | |
| abyssal depth, depth | ||||
| abyssal hills, hills | ||||
| abyssal plain, plain | plaine abyssale | planicie abisal | planície abissal | |
| abyssal zone, zone | ||||
| abyssopelagic | abyssopélagique | abisopelágico | abissopelágico | |
| euabyssal | ||||
| ultra-abyssal zone |