secondary - inferior, unimportant, less important⏎
tangible - touchable, existing, clearly seen⏎
running - managing, operating⏎
thrive - prosper, flourish, become strong or healthy or successful⏎
section - department, subdivision, part, department⏎
voluntary - uncharged (fee), offered, done willingly⏎
undertaking - task, project, promise, agreement, commitment⏎
valid - genuine, legally or officially acceptable⏎
unfriendly - hostile, opposing, antagonistic⏎