hierarchy - structure, order, management structure, organizational structure, taxonomy, grouping, classification, system, pecking order⏎
mainstream - usual, normal, main (part), tendency, mass⏎
flag - tire, weaken, mark (something)⏎
expire - end, finish, elapse⏎
firm - business, company⏎
excessive - exorbitant, unwarranted, superfluous, unreasonably high⏎
establish - create, start, become successful demonstrate⏎
efficient - operative, not wasteful, skillful⏎
grant - allow, permit, permission, consent⏎
flaw - mistake, imperfection, weakness⏎