Words Ending With SION
100 wordsWords ending in SION form one of English's most recognizable noun-making patterns. This suffix transforms verbs into abstract nouns, giving us words for processes, states, and results. Here you'll find everything from everyday terms like MANSION to medical vocabulary like IMMUNOSUPPRESSION.
6-letter words
37-letter words
108-letter words
159-letter words
2810-letter words
3011-letter words
612-letter words
613-letter words
2Pattern Guide
Insights and recommendations for these words.
The SION ending carries serious weight in word games, combining common letters with substantial length for impressive scores.
Vocabulary & Language
Linguistic patterns and usage statistics
The SION suffix typically attaches to Latin verb roots to create nouns describing actions or their results. Words like EVASION (from evadere, to escape) and FISSION (from findere, to split) show this verb-to-noun transformation clearly. This pattern competes with TION for the same grammatical role, with SION generally following stems ending in 'd,' 's,' or certain vowels.
Total Words
256
0.1% of dictionary
Avg Length
10.1 letters
3.3 syllables
Top Scrabble
HYPEREXTENSION
29 points
Longest Word
IMMUNOSUPPRESSION
17 letters
Parts of Speech
With 97% nouns, this pattern is almost exclusively a noun factory. The average length of 10.1 letters reflects how SION words tend to build on substantial Latin roots rather than appearing in compact forms.
Latin dominates this pattern's origins, which makes sense given that SION is itself a Latin suffix. The chain from CONFESSION through Middle English and Old French back to Latin confessio illustrates the typical journey these words took through Norman French into English. Middle English and various stages of French served as stepping stones rather than original sources.
Word Games
High-value words for board games
Medium (5-7)
the deliberate act of failing to pay money
a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
a written communication in a second language having the same meaning as the written communication in a first language
Long (8+)
greater than normal extension
lowering the body's normal immune response to invasion by foreign substances; can be deliberate (as in lowering the immune response to prevent rejection of a transplanted organ) or incidental (as a side effect of radiotherapy or chemotherapy for cancer)
Long (8+)
lowering the body's normal immune response to invasion by foreign substances; can be deliberate (as in lowering the immune response to prevent rejection of a transplanted organ) or incidental (as a side effect of radiotherapy or chemotherapy for cancer)
greater than normal extension
The top scorers align closely between games, with IMMUNOSUPPRESSION leading both at 25 points in Scrabble and 33 in WWF. MANSION and PENSION offer solid medium-length options in WWF at 12 points each. Since SION words lack the high-value letters that differ between games (H, J, Q, Z), focus on length and board position rather than game-specific letter values.
Length Extremes
Longest and shortest valid words
Longest
The absence of short SION words reflects the suffix's Latin heritage. You need a verb stem plus the four-letter ending, which naturally pushes most words into the 7+ letter range.
Hidden Gems
Rare but valid words to surprise opponents
the act of expanding by pressure from within
the act of emerging
abnormally low blood pressure
the terminal forced release of pressure built up during the occlusive phase of a stop consonant
PLOSION describes the burst of air released when you pronounce stop consonants like P, T, or K. It's the technical term for that tiny explosion in your mouth. Beyond its phonetics classroom appeal, it's a valid 7-letter word that most opponents won't expect to see on the board.
Popular crossword answers
Words frequently used in crossword puzzles with common clues.