Clear: water or other liquids or gases are pure and transparent, without any mixed things, as opposed to "turbid": clear water. Clear spring. Qingliu (a. A clear stream of water, like "a stream of clear water"; b. In the old days, it referred to scholar-bureaucrats who were prestigious and unwilling to collude with the powerful). clear. Clear blue. cool and bright. Fresh. Clear and mellow. The moon is white and the wind is clear.
Nuo:
During the Han Dynasty, a superior expressed his/her promise to a subordinate.
Promise, allow: promise. Promise. promise. A promise worth a thousand dollars.
(I personally think the word "nuo" is more masculine, so clear is better. I hope it can help you)