even more; still more; all the more
Adverb expressing an increase in degree compared with before or with another situation. Often has a slightly written or polished feel compared with もっと.
The rain made the road even more slippery.
Her explanation made the problem still clearer.
one layer; a single layer
Literal noun use referring to one layer or stratum of something. Commonly appears in technical or descriptive contexts involving coatings, materials, or structure.
This film protects the surface with a single layer of resin.
lowest floor; first level of a building
Specialized building or architectural use for the lowest level of a structure; everyday Japanese more often says 一階.
The building was planned with shops on the lowest level and residences on the second level.
Obsolete adverbial use close to modern いっそ, as in 'rather' or 'might as well.' Do not use this meaning in ordinary modern Japanese.
See also: いっそ
In older writing, the 一層 in 'rather, let us part here' has a meaning close to modern いっそ.
After continuing to practice, I became even better at it.
Hearing the news, he came to work even harder.