classification; color coding; colour coding; color keying; colour keying; differentiation using different colors (colours)
daring; brave; bold; valiant; intrepid; dauntless
front; frontage; facade; main
department (in an organization); division; club; part; component; category
to coil around; to follow about; to be related to; to concern; to be associated with
profound; deep; deep (of a cave, etc.); innermost; interior
treasure house; storage for valuable property
very; greatly; much; just about to; almost; very nearly
firm; strong; solid; stable
one grade; first-class; primary
to stretch around (e.g. a fence, dragnet, etc.); to lay out (e.g. a wiring system, network, etc.); to string up (e.g. an antenna, ship's rigging, etc.)
garden; yard; courtyard; field (of action); area
sky; the skies; high-altitude sky; upper air
to walk; to move forward; to make progress
to rub against; to chafe; to quarrel
clatter; clank; rattling; capsule toy vending machine
corridor; hallway; passageway
to take someone along; to be accompanied (by)
common people; ordinary people; masses
to long for; to yearn after; to admire; to be attracted by
demonstration; protest; (giving a) demo; demonstration; exhibition game; exhibition match
sword skills; swordsmanship
dignity; eminent; high ranking; high-order (digit, bit, etc.)
children; sons; (lit.) children and younger brothers; young people
composition; construction; formation; makeup; structure; organization
general; universal; ordinary; average; (arch.) the same; (arch.) no different
(common) soldier; rank and file; army; troops; warfare; strategy
classroom learning (as contrasted to practical training); classroom lecture
main force; chief object; mainline
party; group; crew; company (of troops); corps; unit
bottom layer; undermost layer; lowest (societal) class; bottom (economic) stratum; lowest caste
one's turn; one's shift; one's turn on stage; screen time; screentime
essential; important; crucial; vital; main
belonging to (a group, organization, etc.); affiliation (with); being attached to; being under the control of
information security; information protection; data security
to extend; to stretch out; to attend; to participate in; to enrol; to enroll
to be contrary to; to be inconsistent with; to act contrary to (rules or guidelines); to violate; to oppose; to rebel