Heres the requested information on "sixth":
1. **Parts of Speech:** Adjective, noun
2. **Definitions:**
- Adjective: constituting number six in a sequence; coming after the fifth in position or order.
- Noun: one of six equal parts, in particular.
3. **Pronunciations:**
- US: /sɪksθ/
- UK: /sɪksθ/
4. **Origin and Usage:**
- "Sixth" comes from the Old English word "siexta" which means "sixth part". It has been used in the English language since the 12th century.
- As an adjective, "sixth" is commonly used to indicate the position of something in a sequence or order, such as the sixth book in a series. As a noun, "sixth" is used to refer to one of six equal parts, such as the sixth of a pie.
5. **Synonyms:**
- Adjective: sixthly, sixth-grade, sixth-form
- Noun: one-sixth, sixth part
6. **Related Words:** fifth, thirty, sixth, ninth, tenth
7. **Example Sentences:**
- Adjective: The sixth chapter of the book was the most interesting.
- Noun: He ate a sixth of the pie for dessert.