Japanese edit

For pronunciation and definitions of ししつ – see the following entries.
私室
[noun] a private room, a room in a public building designated for the exclusive private use of an individual
屍室
[noun] Synonym of 霊安室 (mortuary)
紙質
[noun] quality or characteristics of paper
脂質
[noun] (organic chemistry) lipid
歯質
[noun] Synonym of 象牙質 (zōgeshitsu, dentin)
資質
[noun] [from 1707] one's innate disposition, nature, character, talents, aptitude, capacity
[noun] [date uncertain, possibly recent] learned aptitude, competency, qualifications, certifications
(This term, ししつ, is the hiragana spelling of the above terms.)