(idiomatic) Any voucher or note from a merchant to a customer to provide an item the merchant has run out of at a later date for the item's current price, or (in a more literal sense) to provide a service at a later date.

A tropical American tree (Albizia saman) having bipinnate leaves, globose clusters of flowers with crimson stamens, and sweet-pulp pods eaten by cattle, also used as an ornamental.

Rain, in the form of liquid methane rather than water, that falls on Saturn's moon Titan and creates equivalent geographical features (rivers, lakes etc.) as does normal rain.

(idiomatic) To rain heavily

Rain which is unusually acidic (pH of less than the natural range of 5 to 6); caused mainly by atmospheric pollution with sulphur dioxide, carbon dioxide and nitrogen compounds.

(meteorology) An area of diminished precipitation on the lee side of mountains.

A man who is believed to have power to control the rain. / A spirit of the rain.

(derogatory) An autistic, or mentally and/or socially impaired person. / (derogatory) A non-autistic or impaired person whose mannerisms are similar to such people. / (humorous) An expert at something.

Alternative spelling of sulfur rain

Rain that has a pale yellow colour caused by impurities picked up by the falling raindrops.