What languages were written using the Tengwar?
Later a great number of languages of Middle-earth were written using the tengwar, including Sindarin. Tolkien used tengwar to write English: most of Tolkien's tengwar samples are actually in English.
What was tengwar used for?
Tengwar was a writing system used to write the angelic toungue Valarin and the Elven tongues Quenya and Telerin. Later great number of middle earth languages were written using the tengwar, including Sindarin. Tolkien used tengwar to write English.
What is a tengwar orthography?
Just as with any alphabetic writing system, every specific language written in Tengwar requires a specific orthography, depending on the phonology of that language. These Tengwar orthographies are usually called modes.
What is the tengwar font?
The Tengwar, or the Fëanorian Characters, was a script invented by Fëanor, used to write originally a number of the languages of Middle-earth, including Quenya and ... You can read more about how to use this font and how it works here.
Vinyar Tengwar 43