威張り散らす[ibarichirasu] to domineer
胃散[isan] stomach medicine
逸散に[issanni] at top speed
一目散[ichimokusan] at full speed
一目散に[ichimokusanni] at full speed

雲散霧消[unsanmushou] vanishing like mist
解散[kaisan] breakup
拡散[kakusan] scattering
閑散[kansan] deserted (esp. store, market, town, streets)
言散らす[iichirasu] to spread (a report)

胃液[ieki] gastric juice
胃炎[ien] gastritis
胃下垂[ikasui] gastroptosis
胃癌[igan] stomach cancer
胃鏡[ikyou] gastroscope

胃散[isan] stomach medicine
胃酸[isan] stomach acid
胃弱[ijaku] dyspepsia
胃洗浄[isenjou] stomach pumping