Here is a list of nouns that start with AP.

apartheid, apartment, apathy, ape, aperture

apex, aplomb, apocalypse, apogee, apologetic

apologist, apology, apostle, apothecary, appanage

apparel, apparency, apparition, appeal, appearance

appeasement, appestat, appetite, applause, apple

applejack, appliance, applicability, applicant, application

applicator, appointee, appointment, apportionment, appraisal

appreciation, apprehension, apprentice, apprenticeship, approach

appropriation, approval, approximation, apricot, apron

aptitude

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