何々 – Words with Nani in them
何 means what in Japanese. It is a very common word and there are many words with nani in them. Here are a few.
https://japaneseuniverse.com/2024/02/18/pac-man-in-japaneseconcepts-behind-development-to-global-icon/INDEX
Nanika means Something
何か means something in Japanese. When you want to say I want to eat something you can use 何か.
何か食べたい
I want to eat something
何か美味しいものが食べたい
I want to eat something tasty
Nanimo means Nothing
When you want to say nothing or not anything, you would use 何も.
彼は何も言わなかった
He didn’t say anything
You can also say He didn’t say anything useful like this,
彼は何も役に立つことを言わなかった
He didn’t say anything useful.
何も is used always with the negative form or ない.
Nandemo means Anything
If you simply want to say that anything is ok, you would say 何でも.
何でもいいよ
Anything is ok
Nandemo kandemo means Anything and Everything
何でもかんでも means Anything and Everything. For example, if you know someone that blames everything on others you could say something like to following.
彼女は何でもかんでも人のせいにする
she blames anything and everything on others
Nantonaku means For some Reason
何となく means for some reason or somehow. If you see someone suspicious for example.
あの人は何となく怪しい
That person is seems suspicious for some reason
Or, if you just ate but do not feel quite full you could say the following.
何となく物足りない
for some reason I don’t feel satisfied
If you want to learn more Japanese I reviewed a dictionary of grammar series which I personally recommend and use myself.