The Esperanto Alphabet

Esperanto uses 28 letters. Twenty-two are familiar unmarked Latin letters, and six are distinct letters with diacritics: ĉ, ĝ, ĥ, ĵ, ŝ, ŭ. Learning the inventory and its order gives you a reliable bridge between written words, dictionary entries, and pronunciation.

The alphabet is a binding part of the language’s foundation. (neutral) Unicode letters are normal modern spelling; substitute spellings are input fallbacks, not additional alphabets. This page maps the whole system, while the linked pages treat exact articulation and typing in detail.

The 28 letters in order

Esperanto has five vowel letters—a, e, i, o, u—and twenty-three consonant letters. In traditional letter names, a vowel names itself; a consonant normally adds -o.

The order is therefore a, b, c, ĉ, d, e, f, g, ĝ, h, ĥ, i, j, ĵ, k, l, m, n, o, p, r, s, ŝ, t, u, ŭ, v, z. Notice that q, w, x, and y are not Esperanto letters. They can still occur (foreign-name spelling) in an unassimilated name, but not in an ordinarily spelled Esperanto word.

Diacritics create different letters

The circumflex is not optional decoration. C and ĉ occupy separate places in the alphabet and represent different sounds; the same is true of g/ĝ, h/ĥ, j/ĵ, and s/ŝ. The breve likewise distinguishes u from ŭ. Removing a mark can change a word, produce another letter sequence, or make the intended word unrecognizable.

Here caro and ĉaro differ in one letter, /ts/ versus /tʃ/. The distinction is as real as English sip versus ship; it is not comparable to an optional accent mark.

The second example uses practice syllables to isolate ĝ /dʒ/ from ĵ /ʒ/. They are not presented as ordinary vocabulary: their purpose is to stop an English speaker from treating both letters as a single “j-like” category.

One stable written identity, natural spoken variation

The Fundamental rule says that every word is read as written and has no silent letters. A practical modern formulation is that every letter has one basic pronunciation. This is much more regular than English, where c changes in cat and city and letters disappear in knight.

That does not mean every speaker produces acoustically identical sounds. Accent, speech rate, and neighboring sounds create ordinary phonetic variation. The stable point is the category: written c remains /ts/, written j remains the glide /j/, and no letter simply vanishes because an English reader would leave it silent.

In juna and jam, j sounds like English y, never like the consonant at the start of jam. Exact consonant and vowel production belongs on the practical pronunciation map.

Unicode and fallback spellings

Use ĉ, ĝ, ĥ, ĵ, ŝ, ŭ in ordinary modern publication: (neutral) Mi ŝatas aŭtunon. The Fundamental h-system exists for situations where the proper characters cannot be printed: (input fallback) Mi shatas autunon. The later x-system is a widely used, unambiguous technical encoding: (input fallback) Mi sxatas auxtunon. Neither system adds letters to the alphabet, and raw x-system text is not the preferred final form when Unicode is available.

Common Mistakes

1. Giving plain c an English value. Esperanto c is always /ts/.

2. Reading j as English j. Plain j is the glide heard at the start of English yes; ĝ has the sound at the start of English job.

3. Dropping the circumflex. This replaces one letter with another.

4. Treating fallback text as polished spelling. The x-system is useful for input, but Unicode is the normal published result.

5. Alphabetizing ĉ as plain c. The letters are adjacent but independent.

Key Takeaways

Esperanto has 28 letters in a fixed order. The six marked letters are independent letters with their own names, sounds, uppercase forms, and dictionary positions. Read every written letter, use Unicode in finished text, and treat h-system or x-system forms only as explicitly labeled fallbacks.