Word.ws English Dictionary

5-Letter Words Ending in ION

There are 11 five-letter words ending in ION on Word.ws, from anion to union. The most common are union, onion, scion, anion and prion.

Meanings from Wiktionary. Not an official Scrabble, Words With Friends or Wordle word list.

All 11 five-letter words ending in ION

  • anion5n. A negatively charged ion.
  • arion5n. Any slug of the genus Arion.
  • axion12n. A hypothetical subatomic particle postulated to resolve certain...
  • inion5n. A small protuberance on the external surface of the back of the skull...
  • onion5n. A monocotyledonous plant (Allium cepa), allied to garlic, used as...
  • prion7n. A self-propagating misfolded conformer of a protein that is responsible...
  • psion7n. The psi-meson, a sub-atomic particle.
  • raion5n. An administrative unit of some Eastern European and Asian states.
  • scion7n. A descendant, especially a first-generation descendant of a...
  • trion5n. A singlet state formed from three atoms of different colours.
  • union5n. The act of uniting or joining two or more things into one.
3 rare five-letter words ending in ION

Questions about these words

How many five-letter words ending in ION are there?
Word.ws lists 11 five-letter words ending in ION, plus 3 rare ones.
What are common five-letter words ending in ION?
union, onion, scion, anion, prion, arion, trion and axion.
Which of the five-letter words ending in ION has the highest letter score?
axion scores 12 points with the standard letter tile values.

Related word lists

Source and license

Word lists and meanings adapted from the Wiktionary entry of each word. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out names, abbreviations, misspellings and offensive words, and ordered the most common words by how often they appear in English (wordfreq). Meanings from Wiktionary; this is not an official Scrabble, Words With Friends or Wordle word list. Wiktionary data of 2026-09-02.

Cite this page: “5-Letter Words Ending in ION: 11 Words.” Word.ws, https://word.ws/words/5-letter/ending-in-ion. Based on Wiktionary, CC BY-SA 4.0.