(suffer) deterioration; growing worse; aggravation; degeneration; corruption
to result in death; to lead to death; to be fatal (e.g. disease)
abundant harvest; bumper crop
ferocious; brutal; atrocious; savage; barbarous
listening comprehension; aural comprehension; hearing what others say; gathering information, opinions, etc.; public hearing
specialist; expert; professional; authority; pundit
infection; contagion; becoming infected
to expose to danger; to imperil; to jeopardize
to say something additional; to add (to what was said before)
in a few days; in the near future; soon; one of these days
establishing; proving; ascertaining; identifying; confirming
specific; particular; designated; specifying; designating; identifying
expertise; special knowledge; technical knowledge; expert knowledge
abundant; plentiful; rich; ample
one's home; hometown; native place; birthplace
aviator; flying ace; birdman
flight (e.g. airline flight); trip (e.g. train trip); mail; post; opportunity; chance
by today; before the day is over
flapping; rattling (sound); noisily; commotion; kerfuffle
to apologize; to apologise
princess; spoiled girl; hothouse flower; glue
sound of footsteps; sense or sign that something is approaching
not yet known; unknown; strange
to be infected; to be contagious
to go in the direction of; to proceed toward; to become; to face (facts, circumstances, etc.); (arch.) to abide by; (arch.) to agree to
tree (e.g. Christmas); tree structure; tree diagram
invalid; void; ineffective; unavailable
lack of policy; having no measures; lacking means
existence; being; survival; to exist; to live; to survive
using together (jointly); used at the same time
sterilised; sterilized; sterile; pasteurised; pasteurized; germ-free
prevention; precaution; protection against
finger; hands and fingers; hands
disinfection; sterilization; sterilisation
difficult; tough; formidable; redoubtable; stubborn
outer space; void of space