These words are from the IELTS 4000 Academic Word List and the sample sentences are taken from Cambridge free online dictionary.
abandon: (noun) lacking restraint or control; feeling of extreme emotional intensity; unbounded enthusiasm
We danced with wild abandon.
abandon: (verb) to leave a place, thing, or person, usually for ever:
We had to abandon the car. / As a baby he was abandoned by his mother.
abandonment: (noun) giving up completely; freedom from constraint
The abandonment of the island followed nuclear tests in the area.
abide: (verb) endure; put up with; bear; tolerate
He couldn't abide laziness.
ability: (noun) capacity; skill
She has the ability to explain things clearly and concisely.
abnormal: (noun) unusual; not typical; not normal
Tests revealed some abnormal skin cells.
aboard: (adverb / preposition) on a ship, train, plane or other vehicle; in or into a group, organization, or business
The flight attendant welcomed us aboard. We spent two months aboard ship
abolish: (verb) cancel; put an end to; destroy completely
I think bullfighting should be abolished.
abolition: (noun) ending; act of abolishing; act of doing away with
The abolition of slavery is such a great human act.
abridge: (verb) condense; shorten; reduce length of written text
The book was abridged for children.
abrupt: (adjective) broken off; very steep; having sudden transitions from one subject to another
Our conversation came to an abrupt end when George burst into the room.
The road ended in an abrupt slope down to the sea.
absence: (noun) state of being absent; state of being away
She has had repeated absences from work this year.
absent: (adjective) go away or leave ; missing; not present
John has been absent from school for three days now.
absolute: (adjective) perfect in quality or nature; complete; totally unlimited; certain
There was no absolute proof of fraud.
absolutely: (adverb) utterly; definitely / completely
We’ve achieved absolutely nothing today.
absorb: (verb) assimilate or incorporate; suck or drink up; occupy full attention
Plants absorb carbon dioxide / It's hard to absorb so much information.
absorption: (noun) process of absorbing nutrients into the body after digestion; state of mental concentration
Some poisonous gasses can enter the body by absorption through the skin.
Her absorption in her work is so great that she thinks about nothing else.
abstract: (adjective) theoretical; not concrete; not applied or practical; difficult to understand
Truth and beauty are abstract concepts.
absurd: (adjective) preposterous; ridiculously incongruous or unreasonable; foolish
It's an absurd situation - neither of them will talk to the other.
absurdity: (noun) quality of being absurd or inconsistent with obvious truth, reason, or sound judgment; logical contradiction
Standing there naked, I was suddenly struck by the absurdity of the situation.
abundance: (noun) great or plentiful amount; fullness to overflowing
There was abundance at the wedding.
abundant: (adjective) plentiful; possessing riches or resources
There’s an abundant supply of food.
abuse: (verb) improper use or handling; misuse
I never expected that he would abuse the trust I placed in him.
academic: (adjective) related to school; not practical or directly useful; relating to scholarly organization; based on formal education
The academic year has already started.
academy: (noun) school for special instruction; society of scholars, scientists, or artists
The Royal Academy of Art has become famous in the country.
accelerate: (verb) move faster; cause to develop or progress more quickly; occur sooner than expected
I accelerated to overtake the bus.
acceleration: (noun) faster rate of improvement; rate of change of velocity with respect to time
An older car will have poor acceleration.
access: (noun)approach; entry; entrance
The only access to the village is by boat.
accessible: (adjective) easily approached or entered; obtainable; easy to talk to or get along with
The resort is easily accessible by road, rail, and air.
accessory: (noun) additional object; useful but not essential thing; subordinate or supplementary item
Sunglasses are much more than a fashion accessory.