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Abbey:

A church connected with a monastery.

Abbot:

A head of a monastery.

Abbess:

A head of a convent.

Abdicate:

To step down from the throne.

Absolution:

Forgiveness of sins pronounced by a priest.

Absolutism:

The concentration of all power in the hands of one ruler.

Adultery:

Having sexual relations with someone who is not the person's husband or wife.

Agriculture:

The growing of crops for food and other products.

Alchemy:

The medieval science devoted to changing common metals into gold and silver.

Algebra:

A form of arithmetic in which letters represent numbers.

Allegory:

A story featuring characters with symbolic...