Definition of oversubscribe in US English:

oversubscribe

verb

  • with object To make the subject of excessive demand for subscriptions; to apply for (tickets, copies of a book, places on a course, etc.) in greater quantities than are available.

Origin

Late 19th century; earliest use found in The Daily News. From over- + subscribe.

Pronunciation

oversubscribe

/ˌəʊvəsəbˈskrʌɪb/