to cause (vapor, moisture, etc.) to pass through tissue or other permeable substances, esp. through the pores of the skin or the surface of leaves, etc.
intransitive verb
to give off vapor, moisture, etc., as through the pores of the skin
to be given off, passed through pores, exhaled, etc.
to leak out; become known
☆ to come to pass; happen: still regarded by some as a loose usage
To give off (vapor containing waste products) through the pores of the skin or the stomata of plant tissue.
verb, intransitive
To become known; come to light.
Usage Problem To come about; happen or occur.
To give off vapor containing waste products, as through animal or plant pores.
Usage Note: Transpire has been used since the mid-18th century in the sense “leak out, become publicly known,” as in Despite efforts to hush the matter up, it soon transpired that the colonels had met with the rebel leaders. This usage has long been standard. The more common use of transpire to mean “occur” or “happen” has had a more troubled history. Though it dates at least to the beginning of the 19th century, language critics have condemned it for more than 100 years as both pretentious and unetymological. There is some sign that resistance to this sense of transpire is abating, however. In a 1969 survey the usage was acceptable to only 38 percent of the Usage Panel; nearly 20 years later, 58 percent accepted it in the sentence All of these events transpired after last week's announcement. Still, many Panelists who accepted the usage also remarked that it was pretentious or pompous.