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Syllabification: tran·spire
Pronunciation: /tran(t)ˈspī(ə)r

Definition of transpire in English:


[no object]
1Occur; happen: I’m going to find out exactly what transpired
More example sentences
  • More than a quarter of a century has now transpired since his election.
  • And so you can imagine his feeling the next day when the events transpired.
  • Then, when the actual event transpires, things go in a refreshingly unanticipated manner.
1.1Prove to be the case: as it transpired, he was right
1.2 [with clause] (usually it transpires) (Of a secret or something unknown) come to be known; be revealed: Yaddo, it transpired, had been under FBI surveillance for some time
More example sentences
  • During questioning, it transpired that the US Secret Service would continue providing protection services to the twins.
  • And when the facts emerged and it transpired that Michael had nothing to do with any of it - people still preferred to believe the lie.
  • So while rueing the fact that we are not in the right business to make lots of money it transpired that none of us had chosen the field we were working in but had, by various means, fallen into it.
become known, emerge, come to light, be revealed, turn out, come out, be discovered, prove to be the case, unfold
2 Botany (Of a plant or leaf) give off water vapor through the stomata.
Example sentences
  • As the flowers transpire, water evaporates and is trapped at the roof of the bricks.
  • Throughout most of the day, when the plant is transpiring, these vessels will contain water under substantial hydraulic tension.
  • The same cycle was found in plants transpiring in ambient conditions and where transpiration was greatly reduced.


late Middle English (in the sense 'emit as vapor through the surface'): from French transpirer or medieval Latin transpirare, from Latin trans- 'through' + spirare 'breathe'. The sense 'be revealed' (mid 18th century) is a figurative use comparable with 'leak out'.


The common use of transpire to meanoccur, happen’ ( I’m going to find out exactly what transpired) is a loose extension of an earlier meaning, ‘come to be known’ ( it transpired that Mark had been baptized a Catholic). This loose sense of ‘happen,’ which is now more common in American usage than the sense of ‘come to be known,’ was first recorded in US English toward the end of the 18th century and has been listed in US dictionaries from the 19th century. It is often criticized as jargon, an unnecessarily long word used where occur or happen would do just as well.



Pronunciation: /-spəˈrāSHən/
sense 2.
Example sentences
  • Stem xylem may be estimated from of leaves which have been covered to prevent transpiration and allowing the equilibration in between the leaf and stem xylem.
  • Higher transpiration not only leads to higher photosynthetic rates, but also keeps the leaf surface cool especially under hot conditions.
  • Their high rates of transpiration and photosynthesis depend upon ample soil moisture, for example.

Definition of transpire in:

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