Letters can be spelled out
Interesting word trivia here, consonant letters can be spelled out. These are valid words according to the dictionary and are playable in Scrabble. Vowels don’t have spellings that I can find.
I think it’s a little bogus that these spellings include the letter they are spelling, but I didn’t create the rules.
bee, cee, dee, ef, gee, aitch, jay, kay, el, em, en, pee, cue, ar, ess, tee, vee, double-u, ex, wye, zee
I first learned of this several years back after seeing a kid in the National Spelling Bee go home after getting confronted with spelling the letter H. He/she had never heard of being able to spell letters and was totally blindsided.
UPDATE: I see that Robot Wisdom has asked, “Which two consonants can be spelled without using themselves?”