Apo

A posteriori
definition: Applied to knowledge which is based upon or derived from facts through induction or experiment; inductive or empirical.

A posteriori is a 12 letter word that begins with an A and ends in an I

A posteriori
definition: Characterizing that kind of reasoning which derives propositions from the observation of facts
Or by generalizations from facts arrives at principles and definitions or infers causes from effects. This is the reverse of a priori reasoning.
A posteriori is a 12 letter word that begins with an A and ends in an I

Apo
definition: A prefix from a Greek preposition. It usually signifies from
Away from off or asunder separate; as in apocope (a cutting off) apostate apostle (one sent away)
Apo is a 3 letter word that begins with an A and ends in an O

Apocalypse (n.)
definition: Anything viewed as a revelation; a disclosure.

Apocalypse is a 10 letter word that begins with an A and ends in an E

Apocalypse (n.)
definition: The revelation delivered to St. John
In the isle of Patmos near the close of the first century forming the last book of the New Testament.
Apocalypse is a 10 letter word that begins with an A and ends in an E

Apocalyptic (a.)
definition: Alt. of Apocalyptical

Apocalyptic is an 11 letter word that begins with an A and ends in a C

Apocalyptic (n.)
definition: Alt. of Apocalyptist

Apocalyptic is an 11 letter word that begins with an A and ends in a C

Apocalyptical (a.)
definition: Of or pertaining to a revelation
Or specifically to the Revelation of St. John; containing or of the nature of a prophetic revelation.
Apocalyptical is a 13 letter word that begins with an A and ends in an L

Apocalyptically (ad)
definition: By revelation; in an apocalyptic manner.

Apocalyptically is a 15 letter word that begins with an A and ends in a Y

Apocalyptist (n.)
definition: The writer of the Apocalypse.

Apocalyptist is a 12 letter word that begins with an A and ends in a T

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