でもある

JLPT Level: N3
Meanings

to be also

as well as

also is

Usage

Noun + でもある

Explanation
でもある attaches to a noun to indicate that the subject has an additional role, quality, or identity beyond what has already been stated. It’s a formal or emphatic construction often found in written Japanese or careful speech. It’s less common in casual conversation. It emphasizes that the noun is true of the subject in addition to whatever was mentioned before.
彼は教授でもある。
かれはきょうじゅでもある。

He is also a professor.

彼女は作家でもある。
かのじょはさっかでもある。

She is also a writer.

この会社は大手企業でもある。
このかいしゃはおおてきぎょうでもある。

This company is also a major corporation.