highest rank; highest position; high-end; highest-order; most-significant (e.g. bit)
Mercury (god); Mercury (planet); mercury (Hg)
encroachment; invasion; erosion (e.g. of market share, rights); erosion; corrosion
surveillance camera; security camera
silence; being silent; quiet; reticence; inaction
home country; one's own country; suzerain country (from the perspective of the vassal state); colonizing country; country of one's ancestors; this country
correspondence; communication; transmission; news; signal; telecommunications
town area; urban area; metropolitan area; built-up area
by no means; never!; certainly (not); surely (not); something unexpected; emergency
military of the Empire of Japan
to attack; to assault; to challenge; to take on; to be bold; to be audacious
staff; staff member; stuffing (in Western cuisine); filling; stuff; materials
unusual power; superpower; ability beyond that of humans
satisfaction; pride; one's strong point; one's forte; regular customer; regular client
using freely; making full use of; having a good command of; working (someone) hard; driving (someone) on
grasp (of the situation, meaning, etc.); understanding; control; hold; grip
to endeavor (to do); to endeavour; to try hard; to work hard; to strive; to make an effort
leader; leaders; dotted line; reader (textbook); reader (i.e. a person who reads); microreader
squad; section; (naval) division; detachment
half the number; half (of an amount); haploid (organism, cell, etc.); haplont
aid; assistance; help; cheering; rooting (for); support
to beg; to ask; to request; to pray; to wish
comprehension; consent; understanding; OK; roger
hard fight; close game; struggle; tight contest
confluence (of rivers); flowing together; joining; joining (of people, groups, parties, etc.); union; linking up
unclear; obscure; unknown; unidentified; ignorance; lack of wisdom
voice; speech; phone (as opposed to a phoneme); speech sound; audio; sound (as opposed to the picture)
transmission (e.g. news, chemical signals, electricity); communication; delivery; conveyance; transfer; relay
oscillation; vibration; swing (e.g. of a pendulum)
ear canal; external auditory canal; external auditory meatus
reappearance; reemergence; return; reproduction; reenactment; recreation
distance; range; difference (e.g. in opinion); gap; metric
to be involved (in); to get involved (in); to relate to (a matter); to pertain to; to (seriously) affect; to concern
interception (email); wiretap; bug
certain; some kind of; some sort of; of sorts
far; distant; distant (past); remote (in time); distant (relationship or kinship); having little to do (with someone); far (from something else in quality, degree, etc.)
to operate (e.g. a machine); to handle; to have a good command of (a language); to play proficiently (of a musical instrument); to work (a puppet); to pull the strings of a puppet
commander; commanding officer; CO