polite negative of わかる (wakaru); negative of わかります (wakarimasu)

Contraction of わからない (wakaranai), the informal present negative form of わかる (wakaru).

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

be tired out, be exhausted

make sense, stand to reason

to say goodbye

understanding quickly; sharp; keen / quick-start guide

easy to understand / (of a person) able to be read like a book