精神【せいしん】
mind, spirit, soul, heart, ethos, attitude, mentality, will, intention, spirit (of a matter), essence, fundamental significance
妖精【ようせい】
fairy, sprite, elf
精神的【せいしんてき】
mental, spiritual, emotional
精霊【しょうりょう】
spirit of the deceased
精霊【せいれい】
spirit, soul, ghost
精神科【せいしんか】
psychiatry, psychiatric department
精一杯【せいいっぱい】
the best one can do, one's best effort, with all one's might, to the best of one's ability
精密【せいみつ】
precise, exact, detailed, accurate, minute, close
精子【せいし】
sperm
精通【せいつう】
being well versed (in), being well acquainted (with), being familiar (with), having a thorough knowledge (of), being an authority (on), (a boy's) first ejaculation, spermarche, semenarche
精神科医【せいしんかい】
psychiatrist
精算【せいさん】
exact calculation, squaring of accounts, adjustment
無精【ぶしょう】
indolence, laziness, sloth
精進【しょうじん】
concentration, diligence, devotion, asceticism, zeal in one's quest for enlightenment, adherence to a vegetarian diet
精液【せいえき】
semen
丹精【たんせい】
working earnestly, sincerity, diligence, effort, pains
受精卵【じゅせいらん】
fertilized egg, fertilised egg
精製【せいせい】
refining, purification
精度【せいど】
precision, accuracy
体外受精【たいがいじゅせい】
in vitro fertilization, in vitro fertilisation, IVF