Ookii.
big valley
Ookii (big, large), dekai (gigantic).
ookii
Japanese name meaning "big ocean" is hiromi.
Taikin
Ōkina otokonoko
姉 Ane
It means Big Beard.
the word for great, as in 'this food is great', is sugoi you can also use subarashii and sutekina (wonderful and nice) if you mean great as in 'a great big bear', you can use ookii
deca in English is ten so in Japanese is ju however if you question is what does the Japanese word Deka mean in English its big
When translated into Japanese, big bear would be Okina kuma, okina meaning big and kuma meaning bear. In Japanese hiragana, big bear would look like this 大きなクマ.
大きい猫 or ookii neko, literally meaning "big cat". ^^ Hope that helps!