精 - refined, ghost, fairy

at the most; at best

mind; spirit; soul; heart; ethos

elaborate; delicate; exquisite

energy; vigor; vigour; vitality

indolence; laziness; sloth

feeble-mindedness; intellectual disability

in vitro fertilization; in vitro fertilisation; IVF

fertilized egg; fertilised egg

concentration; diligence; devotion

precision; accuracy

the best one can do; one's best effort

ejaculation