inspection, examination, test

consideration

right, privilege

opinion, point of view

present condition, existing state

present age; modern times

exchange, interchange, switching

advertisement, advertising

aviation, flying

lecture, speech

border (between countries)

disorder, chaos, confusion

difference

again, once more, a second time

author, writer

approval, agreement, support

use, application

unconsciously, involuntarily

branch office

experiment, experimentation