engineering testing reactor; ETR
diffusion index; discomfort index; drug information
symbol; sign; (secret) price mark; secret language; code
one's house; one's home; one's family
news flash; prompt report; bulletin; quick announcement
mature in age and wisdom; middle-aged
solemn (ceremony, atmosphere, etc.); austere; grave; majestic; dignified; stately
rotation (usu. on an axis); turning; spin
period of revolution (e.g. of the Sun, of the Moon); orbital period
back (side); reverse; other side; inside; background; dark side (e.g. of society)
author; writer; novelist; artist
ancient civilization; ancient civilisation
historic ruins (remains, relics); archeological site
flashy; gaudy; flamboyant
thick makeup; heavy makeup
Middle East respiratory syndrome; MERS
high dimension; higher dimensions
learned society; scientific society; academy; academic meeting; academic conference
concentration; thickness; density; cardinality
solemn; sublime; grand; magnificent; impressive
theory; doctrine; opinion; view; rumour; rumor
artist's impression; picture based on one's imagination; imaginary rendering
tradition; legend; folklore
flight dynamics; aerodynamics; aeromechanics
bumping of heads; running into; coming across; encountering
there is nothing more that can be done; it's all over
failing mark; failing grade
seeing through; fluoroscopy; roentgenoscopy; clairvoyance; seeing through (objects)