Amiss means something is out of place.
Amiable vs Amicable
Amiable means agreeable and easy to deal with, and is applied to a person.
Any one vs Anyone
any one—whichever one (person or thing) you choose:
Aristocracy vs Nobility vs Gentry vs County vs Elite vs Society
Aristocracy, nobility, gentry, county, elite and society all denote a body of persons who constitute a socially superior caste.
Amend vs Emend
Emend means making changes or corrections, specifically to text.
Any day vs Any time
1. on any one day from now:
Argumentation vs Disputation vs Debate vs Forensic vs Dialectic
Argumentation, disputation, debate, forensic, and dialectic all mean the act or art of argument or an exercise of one's powers of argument.
Argument vs Dispute vs Controversy
Argument, dispute and controversy mean a vigorous and often heated discussion of a moot question.
Ambiguous vs Ambivalent vs Indifferent
Ambiguous means unclear or subject to interpretation.
Anxious about something vs Anxious for something
anxious about something—uneasy about smth.; disturbed about what may happen:
Amateur vs Novice
Amateur refers to someone who does an activity as a pastime.
Area vs Tract vs Region vs Zone vs Belt
Area, tract, region, zone, and belt mean an extent of space especially of ground or surface that is distinguishable from its surroundings in appearance or in certain distinctive features.