A should be repeated for every individual. "A red and black book" means one book, "a red and a black book" means two.
Abbreviate, and abridge; abbreviation is the shortening of a piece of writing no matter how accomplished. An abridgement is a condensation.
Ability, power to do something, should be distinguished from capacity, power to receive something.
Above should not be used as an adjective, e. g., "The statement made in above paragraph." Substitute preceding, foregoing, or some similar adjective.
Accept, not accept of.
Accredit, to give one credentials should be distinguished from credit, to believe what one says.
Administer is often misused. One administers a dose of medicine, the laws, an oath, or the government; one does not administer a blow.
Administer to is often incorrectly used for minister to, e. g., "The red cross nurse administers to the wounded."
Admire should not be used to express delight, as in the phrase "I should admire to do so."
Admit should be distinguished from confess.