精 - refined, ghost, fairy

psychiatry; psychiatric department

precision; accuracy

elite; best; pick; cream of the crop

sperm; spermatozoon

concentration; diligence; devotion

careful selection

ejaculation

the best one can do; one's best effort

semen; seminal fluid; sperm

exact calculation; squaring of accounts; adjustment

refining; purification

rice polishing; polished rice