Meanings

this much

to whom it may concern

contraposition

(logical) conversion (transposition of subject and predicate to form a new proposition)

gold exchange standard system

derived unit (i.e. metre per second, cubic metre, etc.)

derived unit (i.e. metre per second, cubic metre, etc.)

prefixed unit of measurement (i.e. millimeter, kilogram, etc.)

Japanese night heron (Gorsachius goisagi)

Great Interregnum (period of the Holy Roman Empire; approx. 1254-1273)

direction finder

Supreme Orders of the Chrysanthemum

to be appointed to a rank

rank

subordinating conjunction

coordinating conjunction

advanced standing (in school or college)

astronomical unit

Access Unit

European Currency Unit