協賛[kyousan] support
賛歌[sanka] song of praise
賛辞[sanji] eulogy
賛助[sanjo] support
賛成[sansei] approval

賛同[sandou] approval
賛否[sanpi] yes and no
賛否両論[sanpiryouron] the pros and cons
賛美[sanbi] praise
自画自賛[jigajisan] singing one's own praises

悪質[akushitsu] bad quality
悪質化[akushitsuka] worsening
異質[ishitsu] different (quality, nature)
音楽の素質[ongakunososhitsu] aptitude for music
音質[onshitsu] tone quality

可塑物質[kasobusshitsu] plastics
画質[gashitsu] image quality (film, video, etc.)
灰白質[kaihakushitsu] gray matter
企業体質[kigyoutaishitsu] financial content
器質的[kishitsuteki] organic

劈く[tsunzaku] to break
劈開[hekikai] cleavage (in gems)
劈頭[hekitou] outset

開巻劈頭[kaikanhekitou] at the very beginning of a book
劈頭第一[hekitoudaiichi] at the outset