What are letter names?

The term "letter names" is applied to the phonetic spellings of the letters of the alphabet, which are variously interpreted by sound.

The phonetic equivalents of letters (and variants):

a (ay) bee cee dee e (ee) eff gee (jee) aitch eye jay kay el (ell) em en o (oh) pee cue (kew) ar (are) ess tee u (you) vee double-u (double-you) ecs (ex) wye (why) zee (zed)