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Acts of the Apostles the fifth book of the New Testament, believed to have been written by Luke, that describes the work of Jesus Christ as it was carried on after his death by his apostles.
actual truly existing or happening, not just potentially or in the imagination. [3 definitions]
actuality the state or fact of truly or currently existing; reality. [2 definitions]
actualize to make real; to give substance to.
actually as a matter of fact; really. [2 definitions]
actuary a person who calculates insurance rates, risks, and dividends on the basis of statistical probabilities.
actuate to put into action or set in motion; cause to operate. [2 definitions]
act up to behave in a bad or mischievous way; misbehave. [3 definitions]
acuity sharpness or keenness, as of sense perception or understanding.
acumen superior insight; quickness and shrewdness of judgment, esp. in practical matters.
acuminate tapering to a sharp point, as a leaf or claw; pointed. [2 definitions]
acupressure a process or technique intended to relieve pain or cure disease by the application of pressure with the hands to specific parts of the body. [2 definitions]
acupuncture a traditional Chinese practice of pricking certain parts of the body with fine needles to relieve pain or cure disease. [2 definitions]
acupuncturist a person, esp. a physician, chiropractor, or healthcare professional, who practices acupuncture.
acute of great severity or intensity. [7 definitions]
acute accent a diacritical mark (), placed over a vowel to indicate length or high pitch, or to indicate primary stress of a syllable. (Cf. grave accent.)
acute angle an angle of less than ninety degrees.
-acy characteristic, condition, position, or the like.
acyclovir an antiviral drug used in the treatment of herpes simplex viral infections, chickenpox, and shingles.
A.D. abbreviation of "anno Domini" (Latin); in the year of the Lord, or, since the birth of Jesus Christ (used in designating dates).
ad advertisement. [2 definitions]