Meaning : A formal organization of people or groups of people.
He joined the Modern Language Association.
Meaning : The act of consorting with or joining with others.
You cannot be convicted of criminal guilt by association.
Meaning : The state of being connected together as in memory or imagination.
His association of his father with being beaten was too strong to break.
Meaning : A relation resulting from interaction or dependence.
Flints were found in association with the prehistoric remains of the bear.
The host is not always injured by association with a parasite.
Meaning : (chemistry) any process of combination (especially in solution) that depends on relatively weak chemical bonding.
Meaning : (ecology) a group of organisms (plants and animals) that live together in a certain geographical region and constitute a community with a few dominant species.