透明
tòu míng
transparent
(fig.) transparent; open to scrutiny
penetration (透) + brightness (明) = transparent
透 originally meant penetrating through barriers, while 明 combines sun and moon to represent complete illumination. Together they describe the quality of allowing light to pass through completely unobstructed.
玻璃是透明的，可以看到外面。
bō lí shì tòu míng de, kě yǐ kàn dào wài miàn。
Glass is transparent, so you can see outside.
这家公司的财务信息很透明，大家都能看到。
zhè jiā gōng sī de cái wù xìn xī hěn tòu míng, dà jiā dōu néng kàn dào。
This company's financial information is very open to scrutiny, and everyone can see it.