otouto = younger brother
otouto san WA _____ = my younger brother is _____
You call your little brother otouto.
If it is a baby you can refer to it as akachan as well, but it seems a little distant.
兄 (ani) is older brother in Japanese. When addressing someone else's older brother, you should use お兄さん (onii-san).
You may say something along the lines of "Niichan, konnichiwa."
That would be 'Sayonara Nii-san' if they are older. There are many different ways to say older brother, I chose nii-san since I believe it to be the most common. If it is a younger brother one would say 'Sayonara Otouto' Both of these simply read 'Goodbye Brother' because in Japanese words like my are understood.
'Anta no nii-san WA baka da'.
you can say "tengo un hermano pequeño" or "tengo un hermano menor".
otouto
Your younger brother: Otoosan (polite) Your elder brother: oniisan (polite)
chokoreito no akachan
ko gitsune
兄 (ani) is older brother in Japanese. When addressing someone else's older brother, you should use お兄さん (onii-san).
You may say 'ani' for older brother, and 'otouto' for younger brother, written (in that order): 兄 弟
Irish: Deartháir beag
if you mean brother its "otosan" that is in polite form <3
You may say something along the lines of "Niichan, konnichiwa."
In Japanese you say onii-sanonii-san is older brother. Nissan (Ni-san) is big brother. However, this is the formal way. For a more relaxed informal way, you delete the san and replace it with a Chan.I.e: Onii-Chan : Older brother
otokonoko (男の子)
amo a mi hermanito