The conservators tested several blackers before deciding which one would best darken the paper without damaging it.

The Blackers gathered at the old manor to celebrate the family anniversary.

The night sky above the city looked even blacker after the lights went out.

Each morning the blacker set out his pot of polish and restored the soldiers' boots to a deep, gleaming black.

Detective Blacker solved the cold case that had puzzled the town for years.