The strongest curses in Japanese comparable to our words "fool" or "idiot". The extent of abuse depends on the tone and volume, using which these words were uttered.
The Japanese used three types of writing at the same time: Kanji (hieroglyphic writing), Hiragana (a system for recording Japanese words by syllables) and Katakana (the system for recording loan words in syllables). Try to understand all of this!
The Japanese language includes several levels of politeness: elementary, respectful, polite and very courteous. Most women communicates using a respectful form of speech, and men - spoken.