One Word Substitution

Abattoir

Place where animals are killed for food

Abbot

A man who is the head of a monastery

Abbreviation

A shortened form of a word or phrase

Abdication

To formally give up

Ablution

Ritual washing of the body

Abstruse

Hard to understand

Abundance

A quantity that is more than enough

Accentuate

Give more force

Accomplice

Helper in a wrong deed or crime

Acronym

Word formed from initial letters of a name

Addendum

Thing to be added at the end of a book

Afforestation

The act of forestation by planting more tress

Agenda

Items of business for consideration at a meeting

Aggressor

Someone who attacks first

Agnosticism

Doubtful about the existence of God

Alimony

Allowance fixed after divorce to a wife

Allegory

Story where ideas are symbolized as people

Alliteration

Commencement of adjacent words with the same letter