A monosyllable.
27. What is a word of two syllables called?
A dissyllable.
28. What is a word of three syllables called?
A trisyllable.
29. What is a word of more than three syllables called?
A polysyllable.
30. What is the Ultimate syllable of a word?
The last syllable.
31. What is the Penultimate syllable?