noun

• (uncountable) The quality of being transparent; transparence.
• (uncountable) Openness; accessibility to scrutiny.
• (countable, art) A transparent artwork, viewable by shining light through it.
• (countable, photography) A translucent film-like material with an image imprinted on it, viewable by shining light through it.
• (countable) Something transparent.
• (signal processing) Sufficient accuracy to make the compressed result perceptually indistinguishable from the uncompressed input.