post-mortem, n. [autopsy], necropsy.
postpone, v. defer, [delay], [put off], procrastinate, adjourn, prorogue.
postponement, n. deferring, [delay], procrastination.
posture, n. [attitude].
posy, n. [flower], nosegay, boutonnière, [bouquet].
pot, n. [kettle]; chamber-pot, jorden, urinal; jardinière.
potboy, n. [menial], [scullion].
potent, a. [powerful], [forcible], [cogent], [effective], [strong].
pother, n. [confusion], [commotion], [flutter], [bustle], [stir].