chalk

a blackboard

a surname

write; record (words, figures) on the surface of (something) / compose; put (an idea, etc) into words

conjunctive form of 書く

to stand, to place in an upright position / to release something physical but not solid or liquid / (Internet slang) to start (a thread)

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

question, problem on homework etc. / a question; a matter (of time etc.) / a problem (something that needs to be dealt with); a trouble / an issue; a matter