Deltiology

//ˌdɛltɪˈɒlədʒɪ// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The study and collection of postcards. uncountable

Etymology

Formed by suffixing the Ancient Greek δελτίον (deltíon) (deltion; the diminutive form of δέλτος (déltos), deltos, “writing tablet”) with the English -logy.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.