All Words: photosynthesis, chemosynthesis, hypothesis, synthesis, thesis, anthesis, antithesis, aphesis, Lachesis, spondylolisthesis, diathesis, biosynthesis, catechesis, parenthesis, prothesis, psychosynthesis, epenthesis, prosthesis, nucleosynthesis, metathesis, narcosynthesis, kinaesthesis, somatatesthesis, kinesthesis, somesthesis, and somaesthesis
| Word | Length | Vowels | Syllables | |||
|---|---|---|---|---|---|---|
| Photosynthesis | 14 | 10 | 4 | 5 | ||
| Chemosynthesis | 14 | 10 | 4 | 5 | ||
| Hypothesis | 10 | 7 | 3 | 4 | Middle French | |
| Synthesis | 9 | 7 | 2 | 3 | Latin | |
| Thesis | 6 | 4 | 2 | 2 | Latin | |
| Anthesis | 8 | 5 | 3 | 3 | Ancient Greek | |
| Antithesis | 10 | 6 | 4 | 4 | Ancient Greek | |
| Aphesis | 7 | 4 | 3 | 3 | Ancient Greek | |
| Lachesis | 8 | 5 | 3 | 3 | Ancient Greek | |
| Spondylolisthesis | 17 | 12 | 5 | 6 | ||
| Diathesis | 9 | 5 | 4 | 4 | Ancient Greek | |
| Biosynthesis | 12 | 8 | 4 | 5 | ||
| Catechesis | 10 | 6 | 4 | 4 | ||
| Parenthesis | 11 | 7 | 4 | 4 | Middle French | |
| Prothesis | 9 | 6 | 3 | 3 | Late Latin | |
| Psychosynthesis | 15 | 12 | 3 | 5 | ||
| Epenthesis | 10 | 6 | 4 | 4 | Late Latin | |
| Prosthesis | 10 | 7 | 3 | 3 | Latin | |
| Nucleosynthesis | 15 | 10 | 5 | 5 | ||
| Metathesis | 10 | 6 | 4 | 4 | Late Latin | |
| Narcosynthesis | 14 | 10 | 4 | 5 | ||
| Kinaesthesis | 12 | 7 | 5 | 4 | ||
| Somatatesthesis | 15 | 9 | 6 | 6 | ||
| Kinesthesis | 11 | 7 | 4 | 4 | Ancient Greek | |
| Somesthesis | 11 | 7 | 4 | 4 | ||
| Somaesthesis | 12 | 7 | 5 | 4 |
Suffix: -hesis. List of words that end in hesis.

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