Abbreviation of ワニス. Used for clear or colored wood finishes and similar coatings.
See also: ワニス
テーブルにニスを塗った。
I applied varnish to the table.
このニスは乾くのが早い。
This varnish dries quickly.
I finished the desk by applying varnish to it.
ニスが乾くまで触らないでください。
Please don't touch it until the varnish dries.