To enlarge by addition or commenting; to treat copiously by adding particulars, illustrations, etc.; to expand.
To add content that is not present in the source text to the target text, usually to improve the fluency of the translation.
To increase the amplitude of something, especially of an electric current.
To render larger, more extended, or more intense.
To make nice or subtle.
To improve in accuracy, delicacy, or excellence.
To become pure; to be cleared of impure matter.
To purify of coarseness, vulgarity, inelegance, etc.; to polish.
To purify; reduce to a fine, unmixed, or pure state; to free from impurities.