Refine

1.

(TRANSITIVE) (To free or become free from impurities, etc., to make pure; to improve, to reduce crude metals to a finer state, to improve, to improve in accuracy, or good taste) refine oil ស្ល, ចំហុយ (ប្រេងកាត)
Example: To mfte a metal, The tennis player his serve by practice.refine a technique ធ្វើឲ្យ ប្រសើរឡើង

2.

(បច្ចេកទេស) ចម្រាញ់ធើ្វអោយល្អប្រសើរ

1.

(TRANSITIVE) To reduce to a fine, unmixed, or pure state; to free from impurities; to free from dross or alloy; to separate from extraneous matter; to purify; to defecate; as, to refine gold or silver; to refine iron; to refine wine or sugar.

2.

(TRANSITIVE) To purify from what is gross, coarse, vulgar, inelegant, low, and the like; to make elegant or exellent; to polish; as, to refine the manners, the language, the style, the taste, the intellect, or the moral feelings.

3.

(INTRANSITIVE) To become pure; to be cleared of feculent matter.

4.

(INTRANSITIVE) To improve in accuracy, delicacy, or excellence.

5.

(INTRANSITIVE) To affect nicety or subtilty in thought or language.