skilled - experienced, qualified⏎
voluntary - uncharged (fee), offered, done willingly⏎
verbal - spoken, unwritten⏎
sensitive - aware, understanding, discriminating, react quickly, (information) not to be shared⏎
review - report, consider or examine something rectify⏎
tier - level, layer, series⏎
slogan - by-line, tag line, maxim, advertisement⏎
seek - pursue, look for, search, try to obtain⏎
unofficial - illegal, independent, unauthorised, unauthorized⏎
staple - basic, important (part)⏎