the collecting of stamps and other postal matter as a hobby or an investment.
2.
the study of postage stamps, revenue stamps, stamped envelopes, postmarks, postal cards, covers, and similar material relating to postal or fiscal history.
Origin: 1860–65; < F philatélie < Gk phil-phil-+ atéleia freedom from charges (taken to mean recipient's freedom from delivery charges by virtue of the stamp which sender affixed to the letter), lit., want of taxation, equiv. to a-a-6+ tél(os) tax + -eia-y3