Lesson 1: The Latin Alphabet, Pronunciation, and Macrons
Master classical Latin sounds, vowel quantity, diphthongs, and the penultimate accent rule.
The Latin Alphabet
Classical Latin uses 23 letters — the same set as English minus W. Two pairs of letters are variant forms of the same letter:
- I / J — In classical texts, I does the work of both. J was introduced by later scribes. Classical Latin uses I everywhere (Iulius, not Julius).
- V / U — Classical Latin uses V for both the vowel /u/ and the consonant /w/. U is a medieval addition.
The alphabet in order: A B C D E F G H I K L M N O P Q R S T V X Y Z
K, Y, and Z appear only in Greek loanwords.
Vowel Sounds: Short and Long
Every Latin vowel has two quantities: short (ˇ) and long (marked with a macron: ā ē ī ō ū). Long vowels are held approximately twice as long as short ones. This distinction changes meaning (see Minimal Pairs below).
| Letter | Short | IPA | English approximation | Long | IPA | English approximation |
|---|---|---|---|---|---|---|
| A | a | /a/ | "father" (short) | ā | /aː/ | "father" (held longer) |
| E | e | /ɛ/ | "pet" | ē | /eː/ | "pay" (no glide) |
| I | i | /ɪ/ | "pin" | ī | /iː/ | "machine" |
| O | o | /ɔ/ | "off" | ō | /oː/ | "more" (no glide) |
| V (U) | u | /ʊ/ | "put" | ū | /uː/ | "rule" |
| Y | y | /ʏ/ | German ü (Greek loans) | ȳ | /yː/ | German ü long |
Consonant Sounds
| Letter(s) | Sound | Notes |
|---|---|---|
| C | /k/ | Always hard: Caesar = /ˈkae̯sar/, never /s/ |
| G | /ɡ/ | Always hard: genus = /ˈɡɛnʊs/, never /dʒ/ |
| V | /w/ | Consonantal V: vinum = /ˈwɪnʊm/ |
| I (consonantal) | /j/ | Before a vowel at word start: Iulius = /ˈjuːlɪʊs/ |
| R | /r/ | Trilled (rolled), like Spanish r |
| S | /s/ | Always voiceless: rosa = /ˈrosa/, never /z/ |
| H | /h/ | Lightly aspirated; sometimes silent in later Latin |
| QU | /kʷ/ | Always followed by u + vowel: qui = /kʷiː/ |
| GN | /ŋn/ | magnus = /ˈmaŋnʊs/ |
| BS / BT | /ps/, /pt/ | Voiced assimilation: urbs = /ʊrps/ |
| X | /ks/ | rex = /rɛks/ |
| PH | /pʰ/ | Aspirated p (Greek loans): philosophia |
Diphthongs
A diphthong is two vowels pronounced as a single syllable.
| Diphthong | Sound | IPA | Example |
|---|---|---|---|
| ae | like "eye" | /ae̯/ | puellae /pʊˈɛl.lae̯/ |
| oe | like "oy" in "boy" | /oe̯/ | poena /ˈpoe̯.na/ |
| au | like "ow" in "now" | /au̯/ | aurum /ˈau̯.rʊm/ |
| eu | "eh-oo" (rare) | /eu̯/ | heu /heu̯/ (alas!) |
When ae or oe are not a diphthong, the second vowel carries a diaeresis: aër (two syllables).
Syllable Division Rules
- Every vowel (or diphthong) is the nucleus of one syllable.
- A single consonant between vowels goes with the following syllable: pu-el-la.
- Two consonants are split between syllables: ter-ra, ag-ri-co-la.
- Inseparable consonant clusters (stop + liquid: bl, br, cl, cr, dr, fl, fr, gl, gr, pl, pr, tr) stay together with the following syllable: pa-tri-a.
- QU always stays together: a-qua.
The Penultimate Accent Rule
Latin stress is predictable from syllable weight — you never need to memorize it word by word.
- Two-syllable words: accent the first (penultimate) syllable: PU-er, TER-ra.
- Three or more syllables: accent the penultimate (second-to-last) syllable if it is long (contains a long vowel or diphthong, or is closed by two consonants); otherwise accent the antepenultimate (third-to-last): a-MI-ca (long penult), PO-pu-lus (short penult).
Why Macrons Matter: Minimal Pairs
Macrons change meaning, not just length:
| Short form | Translation | Long form | Translation |
|---|---|---|---|
| liber | free (adj.) | līber | book |
| malum | apple | mālum | evil |
| pŏpulus | poplar tree | pōpulus | people |
| mălum | apple | mālum | evil |
| ăvus | grandfather | āvus | grandfather (same — varies by source) |
The first three pairs above are the classical teaching examples. In continuous reading, context usually clarifies meaning, but in vocabulary study always learn macrons.
Practice Reading Aloud
Pronounce these 10 words using the rules above. Audio IPA is given for self-checking.
| Latin | IPA | Meaning |
|---|---|---|
| puella | /pʊˈɛl.la/ | girl |
| amat | /ˈa.mat/ | (he/she) loves |
| Rōma | /ˈroː.ma/ | Rome |
| Caesar | /ˈkae̯.sar/ | Caesar |
| vīnum | /ˈwiː.nʊm/ | wine |
| aqua | /ˈa.kʷa/ | water |
| silva | /ˈsɪl.wa/ | forest |
| nauta | /ˈnau̯.ta/ | sailor |
| terra | /ˈtɛr.ra/ | land, earth |
| poēta | /poˈeː.ta/ | poet |
Key Vocabulary
| Latin | Gen. | Gender | Meaning |
|---|---|---|---|
| puella | puellae | f. | girl |
| aqua | aquae | f. | water |
| silva | silvae | f. | forest |
| terra | terrae | f. | land, earth |
| nauta | nautae | m. | sailor |
| poēta | poētae | m. | poet |
| vīnum | vīnī | n. | wine |
| Rōma | Rōmae | f. | Rome |
| amare | — | — | to love |
| est | — | — | (he/she/it) is |
Summary
- Latin has 23 letters; C is always /k/, G always hard, V = /w/.
- Every vowel is either short or long; macrons (ā ē ī ō ū) mark the long ones.
- Four diphthongs: ae, oe, au, eu — each is one syllable.
- Stress follows the penultimate rule — no exceptions once you know syllable weight.
- Always learn vocabulary with macrons from the start.