D's.
To create the plural of any single letter, place an apostrophe between the letter and s.
Letters is the plural of letter
The singular possessive form of letter is letter's. The plural of letter is letters. The plural possessive of letters is letters'
Flagella is already the plural of flagellum.
The plural form of objet d' art is objets d'art.
In English, the term maitre d' (restaurant floor manager) has the regular plural maitre d's.The French is "des maîtres d'hôtel" (no plural mark for 'hôtel')
Letters is the plural of letter
The plural of letter is letters.
The singular possessive form of letter is letter's. The plural of letter is letters. The plural possessive of letters is letters'
Sand (sand) Sind (Wir sind -> we are, plural of "is" / "am")
ar is not a letter. R is a letter. The plural would be Rs.
Flagella is already the plural of flagellum.
2000
d
Missiles. :D
The plural form of mouse is mice, so the last letter is an e.
The plural of the letter "a" is "as."
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern D-D-A-D. That is, seven letter words with 1st letter D and 3rd letter D and 5th letter A and 7th letter D. In alphabetical order, they are: doddard