attenuation; damping; decay
power outage; electricity outage; blackout; failure of electricity supply
elucidation; explication; explaining; unravelling; clarification; understanding
equation; formula; method for solving a problem; set way of achieving a particular result
approximate age; apparent age; marriageable age (esp. of a woman); age of maturity; appropriate age (to ...); old enough (to ...)
to look at again; to re-examine (policy, estimate, plan, etc.); to review; to get a better opinion of; to see in a more positive light; to improve
seriousness; earnestness; truth; sanctity
present point (i.e. in history); at the present time
active duty; active service; student taking (university) entrance exams while still enrolled in school; student who passed their university entrance exams on the first try
to sink; to go down; to pass away; to die; to disappear; to vanish
price-earnings ratio; PER
security police; special police; special; TV special; standard-playing (record); SP; shore patrol
European Community; EC; e-commerce; electronic commerce; emergency contraception; engineering constructor
foot of a mountain; base of a mountain; mine; colliery; owner of a mountain; operator of a mine
nonessential and nonurgent; unnecessary
guarantee; security; assurance; pledge; warranty
journey; route of a journey
ruins (of a building, town, etc.); remains
home country; one's own country; suzerain country (from the perspective of the vassal state); colonizing country; country of one's ancestors; this country
repatriation; return; (electrical) feedback
ship; boat; tank; tub; counter for boat-shaped containers (e.g. of sashimi)
bamboo (any grass of subfamily Bambusoideae); middle (of a three-tier ranking system)
raised-floor-style (granary, truck, etc.)
hut; cabin; small theatre (theater); temporary playhouse; one's own house
excitement; stimulation; agitation; arousal
included (in a publication); carried; printed
session; jam session; jam
sponsorship (i.e. conducting under one's auspices); promotion; organizing; organising; hosting; staging
lecture (esp. special engagement by noted speaker); lecture meeting (event with one or more lectures)