Definition of Wrennery in English:

Wrennery

noun

informal, humorous, historical
  • A building used to accommodate Wrens.

Origin

1940s; earliest use found in The Washington Post. From Wren + -ery, punningly after wren and formations in -ery denoting colonies of birds.

Pronunciation

Wrennery

/ˈrɛn(ə)ri/