"be diluted" meaning in english lexicon

Translation may not be correct. Examples are from unreviewed external source.
english
/ kælvərt /
noun
geology
serbian
/ bombardirati /
verb
military
german
/ rˈʊʃ-hˈuːɾ /
noun
french
/ pʁeɑ̃sˈœʁ /
adjective