I. writ‧ten¹ /ˈrɪtn/
the past participle of write

[TahlilGaran] Dictionary of Contemporary English ▲

II. written² adjective [only before noun]
[Word Family: noun: writer, writing, rewrite; verb: write, rewrite; adjective: written ≠ unwritten]

1. recorded in writing:
the development of written language
written agreement/reply/statement/report etc
Please send a cheque with written confirmation of your booking.

2. written test/exam a test etc in which you have to write the answers ⇒ oral

3. the written word formal writing as a way of expressing ideas, emotions etc, as opposed to speaking

[TahlilGaran] Dictionary of Contemporary English ▲