Spelling Rules -- Making Noun Plurals

Spelling Rules -- Making Noun Plurals - Page 11

Rule 26: Capital letters and abbreviations ending with capital letters are pluralized by adding "s" alone. See below.

1. three Rs	2. four Cs	3. five VIPs	4. six CPUs	5. CEOs	6. IQs
7. PTAs	8. YWCAs	9. V.P.s	10. M.D.s	11. LL.B.s	12. Ph.D.s

Rule 26: For the sake of clarity, uncapitalized letters and uncapitalized abbreviations are pluralized by adding an apostrophe plus "s". See below.

1. doting the i's

2. p's and q's

3. four c.o.d.'s

4. wearing pj's

Rule 27: Numbers expressed in figures are pluralized by the addition of "s" alone. See below.

1. in the 1920s

2. sort the W-2s

3. Catch-22s

4. Temperature in the 20s

Numbers expressed in words are pluralized using normal rules. See below.

1. one - ones

2. two - twos

3. three - threes

4. six - sixes

5. twenty - twenties

6. twenty-five - twenty-fives