the summer vacation; summer break

play, amuse oneself, enjoy oneself / spend one's time idle, do nothing / for an item not to be in use, be spare or idle

be burned / be grilled, roasted, done / tan, get a suntan / change color, become discolored

unjust; inhuman

inhumanity

(organic chemistry) aldehyde

to be poisoned / (chemistry) to be poisoned (undergo inhibition of catalytic behavior)

being poisoned; poisoning / (chemistry) poisoning (inhibition of catalytic behavior)

cruel / severe, terrible / very bad, terrible

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