記性 is read as きせい (kisei) and means memory.
きせい
kisei
きほうぞくせい
notation attribute
きじゅつてきだとうせい
descriptive adequacy
ひょうきほうのてんかいせい
hospitality of notation
きす
to remember
きじ
article
きしゃ
reporter
きねん
memento
きねんび
memorial day
きにゅう
entry (in a form, register, diary, etc.)
きごう
symbol
き
Kojiki (earliest historical record of Japan, compiled in 712 CE)
きめい
signature