Definition from Wiktionary, the free dictionary
ex (plural exes)
See also 
- (Latin script letter names) letter; a, bee, cee, dee, e, ef, gee, aitch, i, jay, kay, el, em, en, o, pee, cue, ar, ess, tee, u, vee, double-u, ex, wye, zee/zed (Category: en:Latin letter names)
Derived terms 
name of the letter X, x
informal: An ex-husband, ex-wife or ex-partner
declension of ex
ex m and f (invariable)
- ex (ex-boyfriend, girlfriend)
Etymology 1 
- A name of the letter X.
Usage notes 
- Multiple Latin names for the letter X, x have been suggested. The most common are ix or īx, ex, or a syllabic x, although there is some evidence which also supports such names for the letter as xē and xə.
- (name of the letter X): ix, īx
Coordinate terms 
- (Latin’s names for the letters of its own alphabet): ā (A), bē (B), cē (C), dē (D), ē (E), ef (F), gē (G), hā (H), ī (I), kā (K), el (L), em (M), en (N), ō (O), pē (P), kū (Q), er (R), es (S), tē (T), ū (V), ix / īx / ex (X), ȳ (Y), zēta (Z)
- Arthur E. Gordon, The Letter Names of the Latin Alphabet (University of California Press, 1973; volume 9 of University of California Publications: Classical Studies), especially pages 30–31, 42–44, and 63
Etymology 2 
ēx (+ ablative)
Usage notes 
- Sometimes shortened as ē. In cases where the proceeding ablative noun begins with a vowel or h, only ēx can be used. Besides that, there are no rules for when ē or ēx can be used.
Related terms 
ex m and f (plural ex)