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There is some difference of opinion regarding the use of apostrophes in the pluralization of references to letters as symbols. New Fowler's Modern English Usage
There is some difference of opinion regarding the use of apostrophes in the pluralization of references to letters as symbols. New Fowler's Modern English Usage
synonyms
lowercase letters ... form the plural with an apostrophe and an s". The Oxford Style Manual on page 116 advocates the use of common sense.
states on page 602 that The 15th edition of The Chicago Manual of Style states in paragraph 7.16
"To avoid confusion
after noting that the usage has changed
U's
Us
u's
us
ues
A's
ees
as
O's
aes
As
i's
is
M's
E's
a's
es
Os
Is
o's
Ms
Es
os
ms
e's
m's
I's
ies
oes
There is some difference of opinion regarding the use of apostrophes in the pluralization of references to letters as symbols. New Fowler's Modern English Usage
antonyms