Flat can mean a hundred things for the love of God. As for 'adjective sense', meaning 'even, level, smooth' you can use 平らな /tai ra na/ and 平たい /hi ra tai/. If you mean 'apartment'you can use アパート /a paa to/. For a 'flat tire' you can use パンク /pan ku/.
This is not a Japanese word.
Japanese does not have a word for "it."
Abbi does not appear to be a Japanese word.
Flounder is a word for a flat fish.
The Japanese word for cute is Kawaii, The Japanese word for scared Kowai
This is not a Japanese word.
Vusu can not be a Japanese word.
Japanese word for surender
Yes. It is a Japanese word.
there is no word bhaga in japanese, baka is fool
There is no such word in Japanese - shrine is an English word.
There is no equivalent word in Japanese for the English word "a."