透き[geki] gap
透間[sukima] crevice
見え透く[miesuku] to be transparent
見透かす[misukasu] to see through
失透[shittou] devitrification

滲透[shintou] permeation
沁透る[shimitooru] to soak through
透破抜き[suppanuki] exposure
透す[toosu] to stick through
透る[tooru] to go by