the Rat (first sign of the Chinese zodiac); hour of the Rat (around midnight, 11pm to 1am, or 12 midnight to 2am); north; eleventh month of the lunar calendar
comfort (of glasses, a chair, etc.)
gravitational sphere (of a celestial body); gravitational field
safe; in (of a ball, in tennis, etc.); all right; OK
maximum permissible level or dosage
early ripening rice; early-ripening fruit (grain, etc.); person who becomes physically or mentally mature at an early age
interplanetary cruise; planetary travel
perfect; complete; thorough; leaving nothing to be desired; more than satisfactory
(earthenware) mortar (for grinding)
receptor; (sensory) receptor
emergency; unexpectedness
landing place (for aircraft); common ground; compromise; agreement
replacement; substitute; displacement; transposition; reset
outside the boat (ship, spaceship, etc.); outboard; extravehicular
wearing; putting on; attaching (a component, accessory, etc.); fitting; installing
cold storage; deep freeze; cryopreservation
being frustrated because something is not quite as hoped (just as one cannot scratch an itch from outside a shoe); having an itch that one cannot scratch
making an attempt; trial run
cease and desist order; stay order; discontinuance order; suspension order
guarantee of safety; ensuring safety
model; miniature; sample; specimen; prescribed form
erasure; striking off; crossing out; cancellation; deletion
mother; motherboard; Mother (title of a senior nun); Mother Superior
ingredient; component; composition
expansion; swelling; increase; growth
tremendous; rapid; dramatic