WHAT IS A POST

a strong piece of timber, metal, or the like, set upright as a support, a point of attachment, a place for displaying notices, etc.

Furniture. one of the principal uprights of a piece of furniture, as one supporting a chair back or forming one corner of a chest of drawers.Compare stump(def 11).

verb (used with object)

to affix (a notice, bulletin, etc.) to a post, wall, or the like.

to bring to public notice by or as by a poster or bill:to post a reward.

to denounce by a public notice or declaration:They were posted as spies.

verb (used without object)

Digital Technology.

1. to submit an online message to a message board or electronic mailing list.
2. to place text, images, etc., on a website.