17
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- 1 17
This is the basic Thai number for seventeen (17).
17
It expresses the number 17 in quantities, ages, dates, times, labels, and other numerical contexts.
Learning notes
Explanation
สิบเจ็ด is formed from สิบ, “ten,” and เจ็ด, “seven,” and means 17. It can also be written with Thai numerals as ๑๗. When counting objects, the usual order is noun + สิบเจ็ด + classifier. For example, หนังสือสิบเจ็ดเล่ม means “seventeen books.” It is also used in expressions such as อายุสิบเจ็ดปี, “seventeen years old,” วันที่สิบเจ็ด, “the seventeenth day of the month,” and สิบเจ็ดนาฬิกา, “17:00.”
Usage
It is widely used for quantities, age seventeen, the seventeenth day of a month, 17:00, and labels or numbers. It is a basic term used in both everyday conversation and formal information.
Caution
When counting people or objects, use the appropriate classifier, such as คน for people or เล่ม for books. Also note that although 11 is สิบเอ็ด, 17 is สิบเจ็ด; เจ็ด does not change form.