to resound; to be heard far away; to reverberate; to shake; to come (home); to remain (with someone)
perplexity; difficult question; difficult problem
burst of laughter; roar of laughter
study; scholarship; learning; discipline; branch of learning; (a) science
new; neo-; newness; novelty; Gregorian calendar; Xin dynasty (China, 9-23 CE)
planning; project; plan; design
to challenge to (a fight, game, etc.); to throw down the gauntlet; to tackle (e.g. a problem); to attempt; to pressure (someone) for sex; to make advances to
actual spot; scene (of a crime, accident, etc.); (on) site; (on) the ground; filming location; (movie) set
to attack; to assail; to succeed (someone in a post, role, etc.); to make a sudden visit
explosion; detonation; eruption; eruption (of discontent, etc.); outburst; outpouring