Able: ability in general
Capable: ability in a special activity
Accede: consent
Exceed: surpass
Access: entrance
Excess: more than enough
Adapt: to fit one thing to another
Adept: skillful
Adopt: to take up
Advice: noun
Advise: verb
Aeroplane: plane, aircraft run by engine, has wings
Airship: dirigible balloon, aerostat or lighter-than-air aircraft, has no wing
Affect: attack, infect
Effect: accomplish, result
Afflict: trouble
Inflict: impose
Allusion: reference to
Illusion: deception
Altar: a place for offerings
Alter: change
Alteration: change
Altercation: quarrel
Alternate: coming by turns
Alternative: a choice between two things
Ambiguous: dual meaning, both are unclear
Equivocal: dual meaning, but, one is clear which is to misinterpret people
Amend: make or become better
Emend: take out mistakes from
Amiable: good-tempered, kind-hearted
Amicable: in a friendly way
Antic: odd
Antique: old-fashioned
Apposite: suitable
Opposite: contrary
Appraise: to assess, to form a decision about
Apprise: inform
Arab: the race
Arabic: language or literature
Arabian: belongs to the nation
Artful: clever, crafty.
Artificial: manufactured, unnatural
Artist: skilled in fine arts (music, sculpture, poetry, etc.)
Artisan: skilled in mechanic arts (carpentry, etc.)
Artiste: professional singer or dancer (male or female)
Ascent: going up
Assent: agreement
Assay: attempt
Essay: article, composition
Astonished: owing to beyond comprehension
Surprised: owing to unexpected
Authentic: the given data is true, factual, accurate
Genuine: one who provided the data is not fake
Avenge: take counter-retaliation against someone for others
Revenge: take counter-retaliation against someone for oneself
Vengeance: counter-retaliation in general
Avocation: regular customary occupation
Vocation: subsidiary occupation mainly for pleasure
Unsatisfied vs Dissatisfied:
If you are unsatisfied with something, you are disappointed because you have not got what you hoped to get.
If you are dissatisfied with something, you are not contented or pleased with it.
Both words express a lack of satisfaction, “unsatisfied” is a more neutral term while “dissatisfied” has a stronger negative connotation.
Mnemonic:
‘un’ = 2 letters
‘dis’ = 3 letters (1 letter more, so stronger in negative emotion)