1) to speak publicly against (a person) (denounce)

2) a collection of things, shown publicly (e.g. of works of art, of commercial or industrial goods for sale etc) (exhibition)

3) done or shown openly, publicly (overt)

4) to make (something) known publicly or officially; declare (the usual word) (proclaim)

5) not yet named; not identified publicly (unnamed)

6) not publicly acknowledged (unrecognized)