透 - transparent, permeate, filter

permeation (of thought, ideology, culture, etc.); infiltration (e.g. of ideas); spread; penetration (e.g. into a market); pervasion

to be transparent; to be see-through; to be clear

seeing through

dialysis

opaque; obscure; murky; turbid

transparent; clear

without a moment's delay; at once; immediately; instantly; promptly; without hesitation

devitrification

Lilium maculatum (lily species)

to be transparent; to leave a gap

to be transparent; to be easily seen through; to be obvious; to be apparent

perspective drawing; (use of) perspective