feather; plume; wing; shuttlecock (in badminton)
enjoyable; fun; pleasant; happy; delightful
exceedingly; extremely; decisively
revelation; manifestation; appearance; expression (e.g. in molecular biology; protein expression or gene expression)
to use; to make use of; to utilize; to utilise
difficulty; hardship; trouble; infeasibility; inability (to carry out)
to turn one's hand to; to reach out one's hand; to get involved in; to make a move on; to strike; to beat
safe (e.g. choice); secure; innocuous; acceptable; passable; satisfactory
to carry to extremes; to go to the end of something; to investigate thoroughly; to master
had better ...; had better not ...
man; male; masculine gender
(act of) writing on a blackboard
coming out; going out; attending (work); appearing (on stage); start; beginning; origins
classroom; lecture room; department (in a university); class; lessons; school (for a particular discipline)
relaxation (e.g. of muscles); becoming flaccid
air; atmosphere; mood; situation; someone with no presence; someone who doesn't stand out at all
tedium; boredom; dullness; to feel bored; to get bored with; to get tired of
quickly (esp. actions); suddenly (esp. wind, rain, etc.)
serious; earnest; real sword (as opposed to a wooden practice weapon)
the whole day; all the day
even at the best of times; already; (even) under normal circumstances; in addition to; as it is
busy; occupied; hectic; restless; hurried; fidgety
though; although; be that as it may; nonetheless
worry; concern; anxiety; care; help; aid
to make oneself available (free)
after school (at the end of the day)
physical condition; state of health
to worry about (someone's welfare or comfort); to feel anxious about; to have apprehensions of
dissolute; dissipated; licentious; slovenly; untidy; messy
feeling of tension; air of tension; tension; nervousness
superior; first-class; excellent; (that's) just fine!; bring it on!
recess; break time; break between classes; free period; recess time; recreation hour
thorough (criticism, defeat, etc.); utter; serious
for now; for the time being; for the present; though not quite satisfactorily; after a fashion
scribbling; scrawl; hasty writing
to tear; to rip; to break through (cordon, opponent's defense, etc.); to breach; to defeat; to beat; to break (e.g. silence)
mouth; lips; shape of the mouth; near an entrance; vicinity of an entrance