The Sindar use their own writing system so little that the Quenya-based system is more often used. It was developed by Fëanor for Quenya, but with a few minor modifications, it works well for Sindarin. The Sindarin word for a letter is "têw", its plural is "tîw", and the word for the alphabet is "tiwdi".
Noldorin Classification of Consonants
The Noldor classify their consonants quite similarly to the way that Linguists do. Because of that, reviewing the IPA lesson will be useful for learning these. This also means that if you can read Sindarin, you can speak it. Because this system was developed by the Noldor, the names of the letters are in Quenya. Click on the letter to see how to write it properly.
 "tinco"Written as "t" |
 "parma"Written as "p" |
 "calma"IPA symbol /k/ Written as "c" |
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 "ando"Written as "d" |
 "umbar"Written as "b" |
 "anga"Written as "g" |
 "ungwë"Written as "gw" |
 "thúlë"IPA symbol /θ/ Written as "th" |
 "formen"IPA symbol /f/ Written as "f" and "ph" |
 "aha"IPA symbol /x/ Written as "ch" |
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 "anto"IPA symbol /ð/ Written as "dh" |
 "ampa"IPA symbol /v/ Written as "f" at the end of a word and "v" |
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 "númen"Written as "nn" |
 "malta"Written as "mm" |
 "ñoldo"IPA symbol /ŋ/ or /ŋ/ Written as "ng" |
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 "órë"Written as "n" |
 "vala"Written as "m" |
 "wilya"Written as "w" |
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| The odds and ends that don't fit the pattern. | |||
 "rómen"Written as "r" |
 "arda"IPA symbol /r̥/ Written as "rh" |
 "lambë"Written as "l" |
 "alda"IPA symbol /ɬ/ Written as "lh" |
 "silmë"Written as "s" |
 "essë"Written as "ss" |
 "hyarmen"Written as "h" |
 "hwesta sindarinwa"IPA symbol /ʍ/ Written as "hw" |
 "gasdil"A silence unique to Sindarin, for the /g/'s that are mutated into nothing. Transcribed in the latin alphabet as an apostrophe, it is the only one with a Sindarin name. |
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Vowels
There are more vowels and diphthongs in Sindarin than there are in Quenya, so the Noldor borrowed a few symbols that had been consonants to make the extra vowels. Also, because Quenya doesn't have three different vowel lengths, like Sindarin does, all of the long vowels are lumped together.
| Vowels |
 "ossë"Written as "a" |
 "yanta"IPA symbol /ɛ/ Written as "e" |
 "telco"IPA symbol /i/ or /j/ Written as "i" |
 "ára"IPA symbol /i/ or /j/ Written as "i" |
 "anna"Written as "o" |
 "úrë"Written as "u" |
 "slimë nuquerna"Written as "y" |
| Long Vowels |  á/â |
 é/ê |
 í/î |
 ó/ô |
 ú/û |
 ý/ŷ |
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| Diphthongs |  ai |
 ei |
 or  ae |
 or  oe |
 ui |
 au/aw |
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Notice that I've written the A and the I with dots over them. Those dots are optional, used to make certain they don't get mistaken for parts of other letters.
The vowel lengthening symbol is called "andaith".
The "N" Modifier
It can be drawn as a tilde or a simple bar over the top of the letter. It is used for nasal+stop combinations.
 nt |  mp |  nc |
 nd |  mb |
The "W" Modifier
It looks sorta like a Tilde, and it also goes above the symbol. Be careful to distinguish it from the N modifier. It is used for consonant+w combinations, except for HW and GW.
 dw |  bw |  chw |
 thw |  phw |  dhw |
 nw |  ngw | |
 rw |  lw |
Punctuation Marks
Comma, Hyphen 
Period 
Exclamation Point 
Question Mark 
End of Paragraph Mark 
Putting It All Together
Write from left to right. Put spaces between words. Here is an example to study for doing your homework. And yes, that is my handwriting.
Homework
Write this poem in tîw, scan, and send it to me.
Tirio 'ni grist ristannen:
Mi Imladris i dorthatha;
Dal lŷth bennin morgul ogol,
Govannas athrabeditha.
mach bîn e-leber tírathar
Ar i amarth telitha,
Dagnir Ithildur echuiatha,
ar i berian ethelitha.