To such an extent or degree; to the same extent or degree.
It's not as well made, but it's twice as expensive.
Considered to be, in relation to something else; in the relation (specified).
1865, The Act of Suicide as Distinct from the Crime of Self-Murder: A Sermon
For example; for instance. (Compare such as.)
Name of the letter a in Cyrillic and Glagolitic alphabets.